Question

A ball of mass m moving with velocity v strikes on a vertical wall and rebounds back with the same speed what is the momentum of the

Answer 1

Answer:

The impulse delivered to the ball is equal to its change in momentum. The momentum of the ball was mv before hitting the wall and m(-v) after. Therefore, the change in momentum is m(-v)-mv=-2mv, so the magnitude of the momentum change (and the impulse) is 2mv.

Explanation:

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