In this simulation choose all the correct statements about this situation from t

Question

In this simulation choose all the correct statements about this situation from the list below. The vector sum of the momenta of the two objects before the collision equals the vector sum of the momenta of the two objects after the collision. Momentum and kinetic energy are always conserved. The magnitude of the change in momentum for one object in the collision is equal to the magnitude of the change in momentum for the other object in the collision. If the magnitude of the momentum of one object is smaller after the collision than it is before the collision, the magnitude of the momentum of the other object must be larger after the collision than it is before the collision. Momentum and kinetic energy are conserved only when the collision is elastic (when the elasticity equals 1). If the center-of-mass of the system is moving in one direction before the collision it must move in the opposite direction after the collision. Momentum is always conserved, but kinetic energy is conserved only when the collision is elastic. The motion of the center-of-mass is completely unaffected by any change in the elasticity of a collision. It is impossible to have a collision between two objects in which the center-of-mass of the system is stationary the entire time.

Explanation / Answer

1) True

2) False

3) True

4) True

5) True

6) False

7) True

8) True

9) False

we know, momentum is conserved in any collision. But kinetic energy is also conserved in only elastic collision.

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