Question

Does the partially elastic collision transfer (more, less, or the same) momentum to the catcher than the completely inelastic collision? Explain.

Answer 1

Partially elastic collision transfers less momentum to the catcher than completely inelastic collision. This is because in perfectly elastic collision, both the bodies stick to each other. Hence, the catcher has the momentum of the ball as well. But in partially elastic collision, the ball hits the catcher, imparts some momentum to him, and moves away with some amount of momentum. Hence, the momentum of the catcher will be lesser than the earlier case of complete inelastic collision.

NOTE: The collision will be partially elastic, when the catcher drops the catch. If the catcher cathes it, it is completely inelastic collision.