14. An object traveling at 4.0 meters per second has a momentum of 16 kilogram-meters per second. What is the mass of the object? (1) 64 kg (2) 20 kg (3) 12 kg (4) 4.0 kg 15. Two carts resting on a frictionless surface are forced apart by a spring. One cart has a mass of 2 kilograms and moves to the left at a speed of 3 meters per second. If the second cart has a mass of 3 kilograms, it will move to the right at a speed of (1) 1 m/s (2) 2 m/s (3) 3 m/s (4) 6 m/s 16. A 20.-kilogram mass moving at a speed of 3.0 meters per second is stopped by a constant force of 15 newtons. How many seconds must the force act on the mass to stop it? (1) 0.20 s (2) 1.3 s (3) 5.0 s (4) 4.0 s
14. An object traveling at 4.0 meters per second has a momentum of 16 kilogram-meters per second. What is the mass of the object? (1) 64 kg (2) 20 kg (3) 12 kg (4) 4.0 kg 15. Two carts resting on a frictionless surface are forced apart by a spring. One cart has a mass of 2 kilograms and moves to the left at a speed of 3 meters per second. If the second cart has a mass of 3 kilograms, it will move to the right at a speed of (1) 1 m/s (2) 2 m/s (3) 3 m/s (4) 6 m/s 16. A 20.-kilogram mass moving at a speed of 3.0 meters per second is stopped by a constant force of 15 newtons. How many seconds must the force act on the mass to stop it? (1) 0.20 s (2) 1.3 s (3) 5.0 s (4) 4.0 s
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Chapter1: Units, Trigonometry. And Vectors
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![14. An object traveling at 4.0 meters per second has a momentum of 16 kilogram-meters per
second. What is the mass of the object?
(1) 64 kg
(2) 20 kg
(3) 12 kg
(4) 4.0 kg
15. Two carts resting on a frictionless surface are forced apart by a spring. One cart has a
mass of 2 kilograms and moves to the left at a speed of 3 meters per second. If the second
cart has a mass of 3 kilograms, it will move to the right at a speed of
(1) 1 m/s
(2) 2 m/s
(3)3 m/s
(4) 6 m/s
16. A 20.-kilogram mass moving at a speed of 3.0 meters per second is stopped by a constant
force of 15 newtons. How many seconds must the force act on the mass to stop it?
(1) 0.20 s
(2) 1.3 s
(3) 5.0 s
(4) 4.0 s
17. A 5.0-newton force imparts an impulse of 15 newton-seconds to an object. The force
acted on the object for a period of
(1) 0.33 s
(2) 20. s
(3) 3.0 s
(4) 75 s
18. If a net force of 10. newtons acts on a 6.0-kilogram mass for 8.0 seconds, the total change
of momentum of the mass is
(1) 48kg•m/s
(2) 60. kg•m/s
(3) 80. kg•m/s
(4) 480 kg•m/s
19. In the diagram below, a 0.4-kilogram steel sphere and a 0.1-kilogram wooden sphere are
located 2.0 meters above the ground. Both spheres are allowed to fall from rest.
STEEL
WOOD
1.0 m
2.0 m
GROUND
Which statement best describes the spheres after they have fallen 1.0 meter? [Neglect air
resistance.]
(1) Both spheres have the same speed and momentum.
(2) Both spheres have the same speed and the steel sphere has more momentum than the
wooden sphere.
(3) The steel sphere has greater speed and has less momentum than the wooden sphere.
(4) The steel sphere has greater speed than the wooden sphere and both spheres have the
same momentum.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F66bf33a4-b994-49c9-bc5e-e59d6ed316fe%2F0b0af459-6f51-4b91-88c9-8f1224ae7811%2Fwxhpwic_processed.jpeg&w=3840&q=75)
Transcribed Image Text:14. An object traveling at 4.0 meters per second has a momentum of 16 kilogram-meters per
second. What is the mass of the object?
(1) 64 kg
(2) 20 kg
(3) 12 kg
(4) 4.0 kg
15. Two carts resting on a frictionless surface are forced apart by a spring. One cart has a
mass of 2 kilograms and moves to the left at a speed of 3 meters per second. If the second
cart has a mass of 3 kilograms, it will move to the right at a speed of
(1) 1 m/s
(2) 2 m/s
(3)3 m/s
(4) 6 m/s
16. A 20.-kilogram mass moving at a speed of 3.0 meters per second is stopped by a constant
force of 15 newtons. How many seconds must the force act on the mass to stop it?
(1) 0.20 s
(2) 1.3 s
(3) 5.0 s
(4) 4.0 s
17. A 5.0-newton force imparts an impulse of 15 newton-seconds to an object. The force
acted on the object for a period of
(1) 0.33 s
(2) 20. s
(3) 3.0 s
(4) 75 s
18. If a net force of 10. newtons acts on a 6.0-kilogram mass for 8.0 seconds, the total change
of momentum of the mass is
(1) 48kg•m/s
(2) 60. kg•m/s
(3) 80. kg•m/s
(4) 480 kg•m/s
19. In the diagram below, a 0.4-kilogram steel sphere and a 0.1-kilogram wooden sphere are
located 2.0 meters above the ground. Both spheres are allowed to fall from rest.
STEEL
WOOD
1.0 m
2.0 m
GROUND
Which statement best describes the spheres after they have fallen 1.0 meter? [Neglect air
resistance.]
(1) Both spheres have the same speed and momentum.
(2) Both spheres have the same speed and the steel sphere has more momentum than the
wooden sphere.
(3) The steel sphere has greater speed and has less momentum than the wooden sphere.
(4) The steel sphere has greater speed than the wooden sphere and both spheres have the
same momentum.
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