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Class 11 Physics Practice Test: Work, Energy and Power - Collision
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Collision is short-duration interaction between two bodies or more than two bodies simultaneously causing change in motion of bodies involved due to internal forces acted between them during this. Collisions involve forces (there is a change in velocity).

Class 11 Physics Practice Test: Work, Energy and Power - Collision
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12 Questions

1. When two same masses travelling in opposite directions with different velocities collide perfectly elastically, their velocities ______
2. A ball of mass 100 g is moving with a velocity of 3 m/s towards east. A cube of mass 200 gram is moving towards west with a velocity of 7 m/s. If the collision is perfectly elastic, what is the magnitude of the final momentum of the system in Kg-m/s?
3. For what value of e is a collision partially elastic?
4. For what value of e is a collision perfectly inelastic?
5. A ball traveling with some velocity v hits another ball elastically which is stationary. What will happen to the system?
6. When e < 1, the kinetic energy in the collision is ____
7. A ball of mass 100 g is moving with a velocity of 3 m/s towards east. A cube of mass 200 gram is moving towards west with a velocity of 7 m/s. If the collision is perfectly elastic, what is the final velocity of the cube in m/s?
8. A car of mass 1ton is moving with a velocity of 25 m/s towards left. A truck of mass 5 ton is moving towards left with a velocity of 3 m/s. If the collision is perfectly elastic, what is the final velocity of the truck in m/s?
9. A ball of mass 100 g is moving with a velocity of 3 m/s towards east. A cube of mass 200 gram is moving towards west with a velocity of 7 m/s. If the collision is perfectly elastic, what is the final velocity of the ball in m/s?
10. Two bodies collide perfectly inelastically, they will ______
11. What is the coefficient of restitution (e)?
12. For what value of e is a collision perfectly elastic?

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