momentum
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![Page 1: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/1.jpg)
The cart’s change of momentum is
1. –30 kg m/s.2. –20 kg m/s.3. –10 kg m/s.4. 10 kg m/s.5. 30 kg m/s.
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The cart’s change of momentum is
1. –30 kg m/s.2. –20 kg m/s.3. –10 kg m/s.4. 10 kg m/s.5. 30 kg m/s.
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1. The clay ball exerts a larger impulse because it sticks.
2. The rubber ball exerts a larger impulse because it bounces.
3. They exert equal impulses because they have equal momenta.
4. Neither exerts an impulse on the wall because the wall doesn’t move.
A 10 g rubber ball and a 10 g clay ball are thrown at a wall with equal speeds. The rubber ball bounces, the clay ball sticks. Which ball exerts a larger impulse on the wall?
![Page 4: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/4.jpg)
1. The clay ball exerts a larger impulse because it sticks.
2. The rubber ball exerts a larger impulse because it bounces.
3. They exert equal impulses because they have equal momenta.
4. Neither exerts an impulse on the wall because the wall doesn’t move.
A 10 g rubber ball and a 10 g clay ball are thrown at a wall with equal speeds. The rubber ball bounces, the clay ball sticks. Which ball exerts a larger impulse on the wall?
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Objects A and C are made of different materials, with different “springiness,” but they have the same mass and are initially at rest. When ball B collides with object A, the ball ends up at rest. When ball B is thrown with the same speed and collides with object C, the ball rebounds to the left. Compare the velocities of A and C after the collisions. Is vA greater than, equal to, or less than vC?
1. vA > vC
2. vA = vC
3. vA < vC
![Page 6: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/6.jpg)
Objects A and C are made of different materials, with different “springiness,” but they have the same mass and are initially at rest. When ball B collides with object A, the ball ends up at rest. When ball B is thrown with the same speed and collides with object C, the ball rebounds to the left. Compare the velocities of A and C after the collisions. Is vA greater than, equal to, or less than vC?
1. vA > vC
2. vA = vC
3. vA < vC
![Page 7: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/7.jpg)
An explosion in a rigid pipe shoots out three pieces. A 6 g piece comes out the right end. A 4 g piece comes out the left end with twice the speed of the 6 g piece. From which end does the third piece emerge?
1. Left end
2. Right end
![Page 8: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/8.jpg)
An explosion in a rigid pipe shoots out three pieces. A 6 g piece comes out the right end. A 4 g piece comes out the left end with twice the speed of the 6 g piece. From which end does the third piece emerge?
1. Left end
2. Right end
![Page 9: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/9.jpg)
1. vf is greater than v1.
2. vf = v1.
3. vf is less than v2.
4. vf = v2.
5. vf is greater than v2, but less than v1.
The two particles are both moving to the right. Particle 1 catches up with particle 2 and collides with it. The particles stick together and continue on with velocity vf. Which of these statements is true?
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1. vf is greater than v1.
2. vf = v1.
3. vf is less than v2.
4. vf = v2.
5. vf is greater than v2, but less than v1.
The two particles are both moving to the right. Particle 1 catches up with particle 2 and collides with it. The particles stick together and continue on with velocity vf. Which of these statements is true?
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1. increases.
2. decreases.
3. stays the same.
A dry ice (solid carbon dioxide) puck revolves in a circle on the end of a lightweight rigid rod that turns on frictionless bearings. A cushion of CO2 gas allows the puck to glide across the surface without friction. As the puck sublimates (changes from a solid to a gas), its speed
![Page 12: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/12.jpg)
1. increases.
2. decreases.
3. stays the same.
A dry ice (solid carbon dioxide) puck revolves in a circle on the end of a lightweight rigid rod that turns on frictionless bearings. A cushion of CO2 gas allows the puck to glide across the surface without friction. As the puck sublimates (changes from a solid to a gas), its speed
![Page 13: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/13.jpg)
1. a force that is applied at a random time.2. a force that is applied very suddenly.3. the area under the force curve in a
force-versus-time graph.4. the time interval that a force lasts.
Impulse is
![Page 14: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/14.jpg)
1. a force that is applied at a random time.2. a force that is applied very suddenly.3. the area under the force curve in a
force-versus-time graph.4. the time interval that a force lasts.
Impulse is
![Page 15: Momentum](https://reader034.vdocument.in/reader034/viewer/2022051816/546271bbaf7959e2278b5c3b/html5/thumbnails/15.jpg)
The total momentum of a system is conserved
1. always.
2. if the system is isolated.
3. if the forces are conservative.
4. never; it’s just an approximation.
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The total momentum of a system is conserved
1. always.
2. if the system is isolated.
3. if the forces are conservative.
4. never; it’s just an approximation.
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In an inelastic collision,
1. impulse is conserved.
2. momentum is conserved.
3. force is conserved.
4. energy is conserved.
5. elasticity is conserved.
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In an inelastic collision,
1. impulse is conserved.
2. momentum is conserved.
3. force is conserved.
4. energy is conserved.
5. elasticity is conserved.