College physics 9Th Edition By Alan Giambattista – Test Bank

 

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Sample Test

College Physics, 9e (Giambattista)

Chapter 3   Acceleration and Newton’s Second Law of Motion

 

1) Which of the following specifications would allow you to precisely meet someone for an appointment?

1.   A) Meet me at my car.

2.   B) Meet me at my office, room 203 in Williams Hall on campus.

3.   C) Meet me at my office, room 203 in Williams Hall on campus at 2:30 PM.

4.   D) Meet me at my office.

5.   E) Meet me at 2:30 PM.

 

Answer:  C

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Position

 

2) Displacement is

1.   A) the distance traveled from the first position to the final position.

2.   B) the distance from the origin to the final position.

3.   C) the change of the position vector from the first position the final position.

4.   D) the vector from the origin to the final position.

 

Answer:  C

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

3) If an object is located 20 m to the right of the origin at 1:00 PM, and later the object is located 30 m to the right of the origin at 2:00 PM, then the displacement from 1:00 PM to 2:00 PM is

1.   A) 50 m to the right.

2.   B) 30 m to the right.

3.   C) 25 m to the right.

4.   D) 20 m to the right.

5.   E) 10 m to the right.

 

Answer:  E

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

4) If an object is located 20 m to the left of the origin at 1:00 PM, and later the object is located 30 m to the right of the origin at 2:00 PM, then the displacement from 1:00 PM to 2:00 PM is

1.   A) 50 m to the right.

2.   B) 30 m to the right.

3.   C) 25 m to the right.

4.   D) 20 m to the left.

5.   E) 10 m to the left.

 

Answer:  A

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

5) If an object is located 20 m to the right of the origin at 1:00 PM, and later the object is located 30 m to the left of the origin at 2:00 PM, then the displacement from 1:00 PM to 2:00 PM is

1.   A) 50 m to the right.

2.   B) 50 m to the left.

3.   C) 30 m to the right.

4.   D) 30 m to the left.

5.   E) 10 m to the left.

 

Answer:  B

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

6) A walker walks 30 m from the origin toward the EAST to point A. She then walks from point A 20 m more toward the EAST to point B. The walker’s total displacement from the origin is

1.   A) 50 m toward the EAST.

2.   B) 30 m toward the WEST.

3.   C) 20 m toward the WEST.

4.   D) 10 m toward the EAST.

5.   E) 10 m toward the WEST.

 

Answer:  A

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

 

7) A walker walks 30 m from the origin toward the EAST to point A. She then walks from point A 20 m more toward the WEST to point B. The walker’s total displacement from the origin is

1.   A) 50 m toward the EAST.

2.   B) 30 m toward the WEST.

3.   C) 20 m toward the WEST.

4.   D) 10 m toward the EAST.

5.   E) 10 m toward the WEST.

 

Answer:  D

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

8) A walker walks 30 m from the origin toward the WEST to point A. She then walks from point A, 20 m more toward the EAST to point B. The walker’s total displacement from the origin is

1.   A) 50 m toward the EAST.

2.   B) 30 m toward the WEST.

3.   C) 20 m toward the WEST.

4.   D) 10 m toward the EAST.

5.   E) 10 m toward the WEST.

 

Answer:  E

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

9) A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A 20 m more toward the WEST to point B. He then runs from point B 30 m more toward the WEST to point C. The runner’s total displacement from the origin to point C is

1.   A) 60 m toward the WEST.

2.   B) 50 m toward the WEST.

3.   C) 20 m toward the WEST.

4.   D) 10 m toward the WEST.

5.   E) 0 m.

 

Answer:  A

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

10) A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A 20 m more toward the EAST to point B. He then runs from point B 30 m more toward the WEST to point C. The runner’s total displacement from the origin to point C is

1.   A) 60 m toward the WEST.

2.   B) 50 m toward the WEST.

3.   C) 20 m toward the WEST.

4.   D) 10 m toward the WEST.

5.   E) 0 m.

 

Answer:  C

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

11) A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A 20 m more toward the WEST to point B. He then runs from point B 30 m more toward the EAST to point C. The runner’s total displacement from the origin to point C is

1.   A) 60 m toward the WEST.

2.   B) 50 m toward the EAST.

3.   C) 20 m toward the WEST.

4.   D) 10 m toward the EAST.

5.   E) 0 m.

 

Answer:  E

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

12) A displacement vector D is given as 40.0 m at an angle of 60.0 degrees NORTH of EAST. The Dx component and the Dy component of the vector are

34.                A) Dx= +34.6 m, Dy= +20.0 m.

35.                B) Dx= +20.0 m, Dy= −34.6 m.

36.                C) Dx= +20.0 m, Dy= +34.6 m.

37.                D) Dx= −34.6 m, Dy= +20.0 m.

38.                E) Dx= +34.6 m, Dy= −20.0 m.

 

Answer:  C

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

 

13) A displacement vector D is given as 40.0 m at an angle of 60.0 degrees EAST of NORTH. The Dx component and the Dy component of the vector are

34.                A) Dx= +34.6 m, Dy= +20.0 m.

35.                B) Dx= +20.0 m, Dy= −34.6 m.

36.                C) Dx= +20.0 m, Dy= +34.6 m.

37.                D) Dx= −34.6 m, Dy= +20.0 m.

38.                E) Dx= +34.6 m, Dy= −20.0 m.

 

Answer:  A

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

 

14) The graph shows the speedometer reading of a car as it comes to a stop along a straight-line path. How far does the car move between t = 0 s and t = 16 s?

 

 

1.   A) 130 m

2.   B) 140 m

3.   C) 150 m

4.   D) 160 m

 

Answer:  D

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Position and Velocity

 

 

15) The figure is a graph of an object moving in a straight line. Solve graphically to determine which section of the path has the highest speed.

 

 

1.   A) DE

2.   B) EF

3.   C) CD

4.   D) AB

 

Answer:  A

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Position and Velocity

 

 

16) The figure is a graph of the vertical velocity versus time for an elevator. Solve graphically for the height of the elevator above the starting point at t = 20 s.

 

 

4.   A) 4.0 m

5.   B) 16.0 m

6.   C) 0.0 m

7.   D) 8.0 m

 

Answer:  D

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Position and Velocity

 

 

17) The figure is a graph of vx(t) for a car. Solve graphically for the distance traveled from t = 10 s to t = 15 s.

 

 

1.   A) 75 m

2.   B) 70 m

3.   C) 67 m

4.   D) 69 m

 

Answer:  D

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Position and Velocity

 

 

18) The figure shows the graph of vx versus time for an object moving along the x-axis. Solve graphically for the distance traveled from t = 9.0 s to t = 13.0 s.

 

 

1.   A) 60 m

2.   B) 84 m

3.   C) 76 m

4.   D) 80 m

 

Answer:  D

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Position and Velocity

 

19) You drive five blocks due north, five blocks due east, and another two blocks due north. What is the magnitude of your displacement?

1.   A) 7 blocks

2.   B) 12 blocks

3.   C) 9 blocks

4.   D) 10 blocks

5.   E) 8.6 blocks

 

Answer:  E

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

 

20) An ant travels 30 cm east, 25 cm north, and finally 15 cm west. What is the direction of its displacement with respect to its starting point?

1.   A) 59º N of E

2.   B) 77º N of E

3.   C) 29º N of E

4.   D) 59º N of W

5.   E) 29º N of W

 

Answer:  A

Type: MC

Topic:  Position and Displacement

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Displacement and the Subtraction of Vectors

 

21) A walker starts at the origin at 1:00 PM and walks 3.0 km from the origin toward the WEST to point A. She arrives at point A at 2:30 PM. She then walks from point A 2.0 km toward the WEST to point B and arrives at point B at 3:45 PM. The walker’s average velocity for the entire trip is

1.   A) 1.8 km/hr toward the EAST.

2.   B) 1.8 km/hr toward the WEST.

3.   C) 1.3 km/hr toward the WEST.

4.   D) 1.3 km/hr toward the EAST.

5.   E) 0.36 km/hr toward the WEST.

 

Answer:  B

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

22) A car travels a distance of 100 km in 2.00 hours. It then travels an additional distance of 60.0 km in 1.00 hour. The average speed of the car for the entire trip is

80.                A) 80.0 km/hr.

81.                B) 60.0 km/hr.

82.                C) 53.3 km/hr.

83.                D) 50.0 km/hr.

84.                E) 46.7 km/hr.

 

Answer:  C

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

23) A car travels at 50.0 km/hr for 2.00 hours. It then travels an additional distance of 40.0 km in 1.00 hour. The average speed of the car for the entire trip is

61.                A) 61.0 km/hr.

62.                B) 57.1 km/hr.

63.                C) 53.3 km/hr.

64.                D) 46.7 km/hr.

65.                E) 30.0 km/hr.

 

Answer:  D

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

24) A car travels a distance of 140 km at 70.0 km/hr. It then travels an additional distance of 60.0 km at 40.0 km/hr. The average speed is

61.                A) 61.0 km/hr.

62.                B) 57.1 km/hr.

63.                C) 53.3 km/hr.

64.                D) 46.7 km/hr.

65.                E) 45.0 km/hr.

 

Answer:  B

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

 

25) The graph shows vx versus t for an object moving along straight line. What is the average speed from t = 0 to t = 11 s?

 

 

1.   A) 25 m/s

2.   B) 36 m/s

3.   C) 30 m/s

4.   D) 21 m/s

 

Answer:  A

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Position and Velocity

 

 

26) The graph shows vx versus t for an object moving in a straight line. What is the average speed from t = 0 s to t = 9 s?

 

 

1.   A) 44 m/s

2.   B) 32 m/s

3.   C) 22 m/s

4.   D) 24 m/s

 

Answer:  D

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Position and Velocity

 

 

27) The graph shows vx versus t for an object moving along straight line. What is the acceleration ax at t = 11 s?

 

 

1.   A) −10 m/s2

2.   B) 10 m/s2

3.   C) 22 m/s2

4.   D) −22 m/s2

 

Answer:  A

Type: MC

Topic:  Newtons Second Law of Motion; Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Velocity and Acceleration

 

 

28) The figure shows the speedometer readings as a car comes to a stop. Solve graphically for the acceleration ax at t = 7.0 s.

 

 

2.   A) 2.5 m/s2

3.   B) − 2.5 m/s2

4.   C) − 2.0 m/s2

5.   D) 2.0 m/s2

 

Answer:  B

Type: MC

Topic:  Newtons Second Law of Motion; Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Velocity and Acceleration

 

 

29) The figure shows the graph of vx versus time for an object moving along the x-axis. What is the acceleration ax at t = 7.0 s?

 

 

4.   A) 4.0 m/s2

5.   B) 5.0 m/s2

6.   C) 0.5 m/s2

7.   D) 0.4 m/s2

 

Answer:  B

Type: MC

Topic:  Newtons Second Law of Motion; Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Velocity and Acceleration

 

30) An object starts from rest and travels in a straight line with an acceleration of 2.0 m/s2 for 3.0 seconds. It then reduces its acceleration to 1.0 m/s2 for 5.0 additional seconds. The magnitude of the velocity at the end of the 5.0 second interval is

6.   A) 6.0 m/s.

7.   B) 18 m/s.

8.   C) 8.0 m/s.

9.   D) 3.0 m/s.

10.                E) 11 m/s.

 

Answer:  E

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

 

 

31) A tractor T is pulling a trailer M with a constant velocity. If the velocity is 20 m/s and M = 200 kg and T = 500 kg, then the force on the trailer due to the tractor is (assume there is no friction or air resistance)

 

 

1.   A) 600 N forward.

2.   B) 450 N backward.

3.   C) 200 N backward.

4.   D) 35 N forward.

5.   E) 0.

 

Answer:  E

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

32) A tractor T is pulling a trailer M with a constant acceleration. If the forward acceleration is 1.5 m/s2 and M = 400 kg and T = 500 kg, then the force on the tractor due to the trailer is (ignore air resistance)

 

 

1.   A) 600 N backward.

2.   B) 450 N backward.

3.   C) 200 N forward.

4.   D) 35 N forward.

5.   E) 0.

 

Answer:  A

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

 

33) A tractor T is pulling a trailer M with a constant acceleration. If the forward acceleration is 0.50 m/s2 and M = 400 kg and T = 500 kg, then the horizontal force on the tractor due to the ground is (ignore air resistance)

 

 

1.   A) 450 N forward.

2.   B) 450 N backward.

3.   C) 250 N forward.

4.   D) 250 N backward.

5.   E) 200 N forward.

 

Answer:  A

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

34) A tractor T is pulling two trailers, M1 and M2, with a constant acceleration. T has a mass of 200 kg, M1 has a mass of 100 kg, and M2 has a mass of 150 kg. If the forward acceleration is 0.60 m/s2, then the horizontal force on the tractor due to the ground is (ignore air resistance)

 

 

1.   A) 270 N backward.

2.   B) 270 N forward.

3.   C) 150 N backward.

4.   D) 150 N forward.

5.   E) 90 N forward.

 

Answer:  B

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

 

35) A tractor T is pulling two trailers, M1 and M2, with a constant acceleration. T has a mass of 200 kg, M1 has a mass of 100 kg, and M2 has a mass of 150 kg. If the forward acceleration is 0.60 m/s2, and air resistance is negligible, then the horizontal force on the tractor due to the attachment to M1 is

 

1.   A) 270 N backward.

2.   B) 270 N forward.

3.   C) 150 N backward.

4.   D) 150 N forward.

5.   E) 90 N forward.

 

Answer:  C

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

36) A tractor T is pulling two trailers, M1 and M2, with a constant acceleration. T has a mass of 200 kg, M1 has a mass of 100 kg, and M2 has a mass of 150 kg. If the forward acceleration is 0.60 m/s2, and air resistance is negligible, then the horizontal force on M2 due to the attachment to M1 is

 

1.   A) 270 N backward.

2.   B) 270 N forward.

3.   C) 150 N backward.

4.   D) 150 N forward.

5.   E) 90 N forward.

 

Answer:  E

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

 

37) A tractor of mass M1 = 2,000 kg is pulling a trailer of mass M2 = 5,000 kg. If the tractor-trailer is accelerated at 2.0 m/s2, and air resistance is negligible, then the tension in the trailer hitch that connects the trailer to the tractor is

 

1.   A) 6,000 N.

2.   B) 8,000 N.

3.   C) 9,000 N.

4.   D) 10,000 N.

5.   E) 11,000 N.

 

Answer:  D

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

38) A tractor of mass M1 = 2,000 kg is pulling a trailer of mass M2 = 5,000 kg. If the tractor-trailer is accelerated at 2.0 m/s2, and air resistance is negligible, then the magnitude of the force the tractor applies to the road is

 

 

1.   A) 14,000 N.

2.   B) 12,000 N.

3.   C) 10,000 N.

4.   D) 8,000 N.

5.   E) 6,000 N.

 

Answer:  A

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

 

39) In the figure, an airport luggage-carrying train with a tractor T is pulling three luggage carts, M1, M2, and M3 with an acceleration of 1.2 m/s2. If T = 300 kg, M1 = 200 kg, M2 = 100 kg, and M3 = 100 kg, and air resistance is negligible, then the tension in the connection between cart M2 and cart M1 is

 

1.   A) 840 N.

2.   B) 480 N.

3.   C) 240 N.

4.   D) 120 N.

5.   E) 0 N.

 

Answer:  C

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

40) In the figure, an airport luggage-carrying train with a tractor T is pulling three luggage carts, M1, M2, and M3 with an acceleration of 1.0 m/s2. If T = 300 kg, M1 = 200 kg, M2 = 100 kg, and M3 = 100 kg, and air resistance is negligible, then the tension in the connection between cart M2, and cart M3 is

 

1.   A) 700 N.

2.   B) 400 N.

3.   C) 200 N.

4.   D) 100 N.

5.   E) 0 N.

 

Answer:  D

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

 

41) Two masses are suspended by a cord that passes over a pulley with negligible mass. The cord also has negligible mass. One of the masses, m1, has a mass of 5.0 kg and the other mass, m2, has a mass of 3.0 kg. The acceleration of m1 is

 

3.   A) 3.3 m/s2

4.   B) 3.3 m/s2

5.   C) 2.5 m/s2

6.   D) 2.5 m/s2

7.   E) 1.1 m/s2

 

Answer:  D

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

 

42) Two masses are suspended by a cord that passes over a pulley with negligible mass. The cord also has negligible mass. One of the masses, m1, has a mass of 6.0 kg and the other mass, m2, has a mass of 4.0 kg. The force of the cord attached to m1 is about

 

 

1.   A) 47 N upward.

2.   B) 47 N downward.

3.   C) 33 N upward.

4.   D) 33 N downward.

5.   E) 15 N upward.

 

Answer:  A

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

 

43) Two masses are suspended by a cord that passes over a pulley with negligible mass. The cord also has negligible mass. One of the masses, m1, has a mass of 7.0 kg and the other mass, m2, has a mass of 3.0 kg. The pulley turns on a shaft through the center of the pulley, which supports the pulley and all the masses. The vertical force of the shaft on the pulley is

 

1.   A) 49 N upward.

2.   B) 49 N downward.

3.   C) 82 N upward.

4.   D) 82 N downward.

5.   E) 98 N upward.

 

Answer:  C

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

44) Two masses are connected by a cord that passes over a pulley as shown in the figure. The pulley and cord have negligible mass and m2 (2.0 kg) moves on a horizontal surface without friction, while m1 (2.0 kg) is suspended vertically. What is the acceleration of m1?

 

 

3.   A) 3.9 m/s2downward

4.   B) 12 m/s2downward

5.   C) 6.0 m/s2downward

6.   D) 4.9 m/s2downward

 

Answer:  D

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

45) Two masses are connected by a cord that passes over a pulley as shown in the figure. The pulley and the cord have negligible mass and m2 (6.0 kg) moves on a horizontal surface with a coefficient of static friction of 0.5, while m1 (2.0 kg) is suspended vertically. If the masses start from rest, what is the acceleration of m2?

 

 

1.   A) 0.0 m/s2

2.   B) 3.0 m/s2

3.   C) 1.0 m/s2

4.   D) 2.9 m/s2

 

Answer:  A

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

46) A 4.0 kg mass has a velocity of 12 m/s to the WEST. The 4.0 kg mass experiences a constant net force of 8.0 N to the WEST for 3.0 sec. What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval?

1.   A) 18 m/s to the WEST

2.   B) 6.0 m/s to the WEST

3.   C) 0.0 m/s

4.   D) 6.0 m/s to the EAST

5.   E) 18 m/s to the EAST

 

Answer:  A

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  The Effect of a Nonzero Net Force Acting on an Object

 

 

47) A 4.0 kg mass has a velocity of 10 m/s to the EAST. The 4.0 kg mass is subjected to a constant net force of 16 N to the WEST for 3.0 sec. What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval?

1.   A) 22 m/s to the WEST

2.   B) 2.0 m/s to the WEST

3.   C) 0.0 m/s

4.   D) 2.0 m/s to the EAST

5.   E) 22 m/s to the EAST

 

Answer:  B

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  The Effect of a Nonzero Net Force Acting on an Object

 

48) A car traveling at 3.0 m/s has a constant acceleration of 4.0 m/s2 in the same direction as the velocity. After 2.0 seconds, the speed is

5.   A) 5.0 m/s.

6.   B) 7.0 m/s.

7.   C) 9.0 m/s.

8.   D) 11 m/s.

9.   E) 13 m/s.

 

Answer:  D

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

 

49) A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s2 in the same direction as the velocity. After 3.0 seconds, the magnitude of the average velocity during the acceleration is

5.   A) 5.0 m/s.

6.   B) 7.0 m/s.

7.   C) 9.0 m/s.

8.   D) 11 m/s.

9.   E) 13 m/s.

 

Answer:  B

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

 

 

50) A boat is traveling at 4.0 m/s as it passes the starting line of a race. If the boat accelerates at 2.0 m/s2 for 3.0 seconds, in the same direction as the velocity, then the magnitude of the velocity of the boat after the 3.0 seconds is

1.   A) 21 m/s.

2.   B) 9.0 m/s.

3.   C) 13 m/s.

4.   D) 10 m/s.

5.   E) 4.0 m/s.

 

Answer:  D

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

 

51) A boat is traveling at 4.0 m/s as it passes the starting line of a race. If the boat accelerates at 1.0 m/s2 for 6.0 seconds, in the same direction as the velocity, then the magnitude of the average velocity of the boat during the 6.0 seconds is

1.   A) 21 m/s.

2.   B) 9.0 m/s.

3.   C) 13 m/s.

4.   D) 10 m/s.

5.   E) 7.0 m/s.

 

Answer:  E

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

 

52) A car starts from rest and travels a distance of 100 m in 15 seconds with a constant acceleration. The magnitude of the average velocity of the car for the 15 second interval is

24.                A) 24.0 m/s.

25.                B) 21.0 m/s.

26.                C) 16.7 m/s.

27.                D) 13.3 m/s.

28.                E) 6.67 m/s.

 

Answer:  E

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

 

53) An object starts from rest and moves in a straight line with an acceleration of 2.0 m/s2 for 3.0 seconds. It then reduces its acceleration to 1.0 m/s2 for 5.0 additional seconds. The magnitude of the velocity is then

1.   A) 51 m/s.

2.   B) 38 m/s.

3.   C) 11 m/s.

4.   D) 9.0 m/s.

5.   E) 7.6 m/s.

 

Answer:  C

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

 

54) An object starts with an initial velocity of magnitude 4.0 m/s and accelerates at 4.0 m/s2 in the same direction as the velocity for 6.0 seconds. It then accelerates at 2.0 m/s2 in the opposite direction, until its velocity is the same as the initial value. What is the total distance covered? (Hint: make a graph of velocity versus time.)

1.   A) 67 m.

2.   B) 96 m.

3.   C) 192 m.

4.   D) 216 m.

5.   E) 288 m.

 

Answer:  E

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Velocity and Acceleration

 

 

55) An airplane is flying in horizontal flight with a constant acceleration of 2.00 m/s2. The weight of the airplane is 40,000 N. The wings produce a lift force that is perpendicular to the wings and a drag force which is parallel to the wings. The drag force is 2,000 N. The forward thrust force the engine produces is

1.   A) 2,800 N.

2.   B) 4,000 N.

3.   C) 7,500 N.

4.   D) 8,000 N.

5.   E) 10,200 N.

 

Answer:  E

Type: MC

Topic:  Applying Newton’s Laws

Accessibility:  Keyboard Navigation

Chapter:  03

 

56) The velocity of a boat with respect to the water is 4.0 m/s at an angle of 30.0 degrees NORTH of WEST. The velocity of the water with respect to the ground is 8.0 m/s at an angle of 45 degrees SOUTH of EAST. What is the velocity of the boat with respect to the ground?

4.   A) 4.7 m/s at 32 degrees SOUTH of WEST

5.   B) 4.3 m/s at 59 degrees SOUTH of EAST

6.   C) 8.3 m/s at 22 degrees SOUTH of WEST

7.   D) 9.8 m/s at 330 degrees SOUTH of EAST

8.   E) 8.3 m/s at 25 degrees SOUTH of WEST

 

Answer:  B

Type: MC

Topic:  Velocity is Relative; Reference Frames

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Relative Velocity

 

 

57) The velocity of a boat with respect to the water is 4.0 m/s at an angle of 30.0 degrees NORTH of EAST. The velocity of the water with respect to the ground is 3.0 m/s at an angle of 90.0 degrees NORTH of EAST. What is the velocity of the boat with respect to the ground?

6.   A) 6.1 m/s at 36 degrees NORTH of EAST

7.   B) 5.8 m/s at 55 degrees NORTH of EAST

8.   C) 6.1 m/s at 61 degrees NORTH of EAST

9.   D) 5.8 m/s at 36 degrees NORTH of EAST

10.                E) 6.1 m/s at 55 degrees NORTH of EAST

 

Answer:  E

Type: MC

Topic:  Velocity is Relative; Reference Frames

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Relative Velocity

 

58) The velocity of an airplane with respect to the ground is 2.00 × 102 m/s at an angle of 30.0 degrees NORTH of EAST. The velocity of the airplane with respect to the air is 1.50 × 102 m/s at an angle of 60.0 degrees NORTH of EAST. What is the velocity of the air with respect to the ground?

1.   A) 112 m/s at 50 degrees NORTH of EAST

2.   B) 103 m/s at 17 degrees SOUTH of EAST

3.   C) 134 m/s at 49 degrees SOUTH of EAST

4.   D) 134 m/s at 17 degrees NORTH of EAST

5.   E) 103 m/s at 65 degrees NORTH of EAST

 

Answer:  B

Type: MC

Topic:  Velocity is Relative; Reference Frames

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Relative Velocity

 

 

59) The velocity of the air with respect to the ground is 50.0 m/s at an angle of 30.0 degrees NORTH of EAST. The velocity of the airplane with respect to the air is 150 m/s at an angle of 60.0 degrees NORTH of EAST. What is the velocity of the airplane with respect to the ground?

1.   A) 158 m/s at 16 degrees NORTH of EAST

2.   B) 103 m/s at 29 degrees SOUTH of EAST

3.   C) 195 m/s at 53 degrees NORTH of EAST

4.   D) 135 m/s at 29 degrees SOUTH of EAST

5.   E) 195 m/s at 53 degrees SOUTH of EAST

 

Answer:  C

Type: MC

Topic:  Velocity is Relative; Reference Frames

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Relative Velocity

 

60) A beetle runs an erratic pattern on a square kitchen table that is 1.5 m on a side. The sides are arranged along the directions north/south and east/west. It begins at the southwest corner and travels east along one side to the adjacent corner in 20.0 s. It then turns north and reaches the northeast corner 12.5 s later. What is the magnitude of the beetle’s average velocity for the whole trip?

1.   A) 0.092 m/s

2.   B) 0.098 m/s

3.   C) 0.065 m/s

4.   D) 0.033 m/s

 

Answer:  C

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

 

61) An ant crawls in a straight line at a constant speed of 0.24 m/s for a distance of 3.0 m, beginning in the corner of a square classroom. It then turns exactly 90 degrees to the right, and proceeds an additional 4.0 m with a constant speed of 0.44 m/s, reaching the other corner of the same wall from which it began. What was the ant’s average speed for the full trip from corner to corner?

1.   A) 0.34 m/s

2.   B) 0.30 m/s

3.   C) 0.21 m/s

4.   D) 0.23 m/s

5.   E) 0.32 m/s

 

Answer:  E

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

62) An ant crawls in a straight line at a constant speed of 0.24 m/s for a distance of 3.0 m, beginning in the corner of a square classroom. It then turns exactly 90 degrees to the right, and proceeds an additional 4.0 m, reaching the far corner of the same wall from which it began. If the second leg of the journey was crawled in half the amount of time as the first, what was the ant’s average speed for the whole trip?

1.   A) 0.80 m/s

2.   B) 0.27 m/s

3.   C) 0.37 m/s

4.   D) 0.44 m/s

 

Answer:  C

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

 

63) An ant crawls in a straight line at a constant speed of 0.35 m/s, beginning in the corner of a square classroom that is 5.00 m on a side. It first crosses the diagonal of the room and then turns to the right, continuing at 0.45 m/s to the far corner of the same wall from which it began. What was the ant’s average speed for the whole trip?

1.   A) 0.40 m/s

2.   B) 0.16 m/s

3.   C) 0.24 m/s

4.   D) 0.39 m/s

 

Answer:  D

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

64) A model airplane is flying north at 12.5 m/s initially, and 25 seconds later is observed heading 30 degrees west of north at 25 m/s. What is the magnitude of the average acceleration during this time interval?

1.   A) 0.37 m/s2

2.   B) 0.50 m/s2

3.   C) 0.62 m/s2

4.   D) 0.87 m/s2

 

Answer:  C

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average and Instantaneous Acceleration

 

65) A 1.7 kg model airplane is flying north at 12.5 m/s initially, and 25 seconds later is observed heading 30 degrees west of north at 25 m/s. What is the magnitude of the average net force on the airplane during this time interval?

1.   A) 0.85 N

2.   B) 0.63 N

3.   C) 1.1 N

4.   D) 1.5 N

 

Answer:  C

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  The Effect of a Nonzero Net Force Acting on an Object

 

66) A baseball is pitched, reaching the batter with a speed of 37 m/s, and is hit such that it returns on the same line at 48 m/s. If the ball was in contact with the bat for 0.22 seconds, what was the magnitude of the average acceleration experienced by the ball during the time of contact?

1.   A) 220 m/s2

2.   B) 41 m/s2

3.   C) 390 m/s2

4.   D) 170 m/s2

 

Answer:  C

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average and Instantaneous Acceleration

 

67) A 450 g baseball is pitched, reaching the batter with a speed of 37 m/s, and is hit such that it returns on the same line at 48 m/s. If the ball was in contact with the bat for 0.22 seconds, what was the magnitude of the average net force experienced by the ball during the time of contact?

1.   A) 170 N

2.   B) 98 N

3.   C) 77 N

4.   D) 18 N

 

Answer:  A

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average and Instantaneous Acceleration

 

68) A river flows toward the east at 1.5 m/s. Steve can swim 2.2 m/s in still water. If he wishes to cross the river so that his direction is exactly northward, what direction relative to the water must he swim?

1.   A) 55° north of west

2.   B) 43° west of north

3.   C) 34° north of west

4.   D) 47° west of north

 

Answer:  B

Type: MC

Topic:  Velocity is Relative; Reference Frames

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Relative Velocity

 

 

69) A river flows toward the east at 2.2 m/s. Steve can swim 2.5 m/s in still water. If he wishes to cross the river so that his direction is directly northward, how long will it take him to cross the 75 m wide river?

1.   A) 34 s

2.   B) 39 s

3.   C) 30 s

4.   D) 63 s

 

Answer:  D

Type: MC

Topic:  Velocity is Relative; Reference Frames

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Relative Velocity

 

70) A river flows toward the east at 1.7 m/s. Steve can swim 2.0 m/s in still water. If he swims relative to the water at a direction of 33 degrees west of north, how long will it take him to cross the 75 m wide river?

1.   A) 45 s

2.   B) 39 s

3.   C) 123 s

4.   D) 27 s

 

Answer:  A

Type: MC

Topic:  Velocity is Relative; Reference Frames

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Relative Velocity

 

71) You drive your car 5.0 km due east at 35 km/hr and suddenly realize that you forgot your wallet. So, you return home, driving west at 40 km/hr, and upon arrival you spend 10 minutes looking for it. Finally, you get back on the road and drive a total of 57.0 km due east. If your average velocity was 40 km/hr for the whole journey, what was your average speed during the last leg?

1.   A) 49 km/hr

2.   B) 40 km/hr

3.   C) 45 km/hr

4.   D) 58 km/hr

 

Answer:  D

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

72) The interstate on-ramp is 1.5 km west of your home, and on leaving for grandmother’s house you are only able to accomplish an average velocity of 12 km/hr between your home and the on-ramp. At the on-ramp, you wait for traffic for 2.0 min before proceeding toward grandmother’s house. If you wish to arrive there, which is 15 km south of the on-ramp, over a river and through some woods, in a total elapsed time of 25.0 minutes, what average speed must you maintain on the interstate highway?

1.   A) 51 km/hr

2.   B) 58 km/hr

3.   C) 67 km/hr

4.   D) none of these.

 

Answer:  B

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

73) The interstate on-ramp is 5.5 km west of your home, and on leaving for grandmother’s house you are only able to accomplish an average velocity of 38 km/hr between your home and the on-ramp. At the on-ramp, you wait for traffic for 2.0 min before proceeding toward grandmother’s house. If you wish to arrive there, which is 15 km south of the on-ramp, over a river and through some woods, having achieved an average velocity of 42 km/hr for the whole trip, how fast do you need to drive south on the interstate highway?

1.   A) 58 km/hr

2.   B) 48 km/hr

3.   C) 74 km/hr

4.   D) 39 km/hr

 

Answer:  C

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Average Velocity

 

 

74) A 78.0 kg object is travelling due north at 15.2 m/s when it begins to experience a constant net force of 1.72 kN toward the south. How long will it take to stop under the influence of this force?

1.   A) 1.45 s

2.   B) 2.98 s

3.   C) 0.335 s

4.   D) 0.689 s

 

Answer:  D

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  The Effect of a Nonzero Net Force Acting on an Object

 

75) A 78 kg object is travelling due north at 15.2 m/s when it begins to experience a constant net force of 1.72 kN toward the south. What will its velocity be 0.75 s later?

18.                A) 18.8 m/s, south

19.                B) 1.3 m/s, south.

20.                C) 1.3 m/s, north.

21.                D) 18.8 m/s, north.

22.                E) 16.5 m/s, north

23.                F) 16.5 m/s, south

 

Answer:  B

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  The Effect of a Nonzero Net Force Acting on an Object

 

76) An object travels 7.5 m/s toward the west . Under the influence of a constant net force of 5.2 kN, it comes to rest in 3.2 s. What is its mass?

1.   A) 2200 kg

2.   B) 1600 kg

3.   C) 1100 kg

4.   D) 690 kg

 

Answer:  A

Type: MC

Topic:  The Effect of a Nonzero Net Force Acting on an Object

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  The Effect of a Nonzero Net Force Acting on an Object

 

 

77) An object travels 7.5 m/s toward the west. Under the influence of a constant net force of 5.2 kN, after 4.3 s, it is travelling 2.5 m/s toward the east. What is its mass?

1.   A) 2200 kg

2.   B) 4500 kg

3.   C) 6000 kg

4.   D) 12000 kg

 

Answer:  A

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  The Effect of a Nonzero Net Force Acting on an Object

 

78) The figure shows the graph of vx versus time for an object moving along the x-axis. Solve graphically for the distance traveled between t = 5.0 s and t = 9.0 s.

 

 

1.   A) 110 m

2.   B) 120 m

3.   C) 100 m

4.   D) 130 m

 

Answer:  B

Type: MC

Topic:  Velocity

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Position and Velocity

 

 

79) The figure shows the graph of vx versus time for an object moving along the x-axis. Solve graphically for the average acceleration between t = 5.0 s and t = 9.0 s.

 

4.   A) 4.0 m/s2

5.   B) 5.0 m/s2

6.   C) 0.5 m/s2

7.   D) 0.4 m/s2

 

Answer:  B

Type: MC

Topic:  Acceleration and Newton’s Second Law of Motion

Accessibility:  Keyboard Navigation

Chapter:  03

Subtopic:  Graphical Relationships Between Velocity and Acceleration

 

 

College Physics, 9e (Giambattista)

Chapter 5   Circular Motion

 

1) An object is moving in a circular path with a radius of 4.0 m. If the object moves through an angle of 45 degrees, then the angle in radians is

1.   A) 0.25 radians.

2.   B) 0.53 radians.

3.   C) 0.79 radians.

4.   D) 1.02 radians.

5.   E) 1.44 radians.

 

Answer:  C

Type: MC

Topic:  Description of Uniform Circular Motion

Accessibility:  Keyboard Navigation

Chapter:  05

 

2) An object is moving in a circular path with a radius of 5.00 m. If the object moves through an angle of 270 degrees, then the tangential distance traveled by the object is

4.   A) 4.71 m.

5.   B) 15.2 m.

6.   C) 23.6 m.

7.   D) 40.2 m.

 

Answer:  C

Type: MC

Topic:  Description of Uniform Circular Motion

Accessibility:  Keyboard Navigation

Chapter:  05

 

3) An object is moving in a circular path of radius R. If the object moves through an angle of 30 degrees, then the angle in radians is

1.   A) 0.22 radians.

2.   B) 0.52 radians.

3.   C) 0.75 radians.

4.   D) 1.30 radians.

5.   E) 1.75 radians.

 

Answer:  B

Type: MC

Topic:  Description of Uniform Circular Motion

Accessibility:  Keyboard Navigation

Chapter:  05

 

 

4) An object is moving in a circular path of radius 4.00 m. If the object moves through an angle of 30.0 degrees, then the tangential distance traveled by the object is

3.   A) 3.66 m.

4.   B) 3.21 m.

5.   C) 2.84 m.

6.   D) 2.09 m.

7.   E) 1.75 m.

 

Answer:  D

Type: MC

Topic:  Description of Uniform Circular Motion

Accessibility:  Keyboard Navigation

Chapter:  05