Which of these is the best example of an elastic collision? A rubber ball is dropped from 1.2m and bounces back up to a height of 0.8m. A billiard ball strikes another of the same mass at rest and stops, and the second ball then moves with the same velocity as the first ball. A cart rams a similar cart and latches onto it with a loud clank. A cart rams another with a compressed spring, which is released, pushing them apart.

Question

Kali

Physics

5 October, 15:59

Which of these is the best example of an elastic collision? A rubber ball is dropped from 1.2m and bounces back up to a height of 0.8m. A billiard ball strikes another of the same mass at rest and stops, and the second ball then moves with the same velocity as the first ball. A cart rams a similar cart and latches onto it with a loud clank. A cart rams another with a compressed spring, which is released, pushing them apart.

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Huber · Answer 1

A billiard ball strikes another of the same mass at rest and stops, and the second ball then moves with the same velocity as the first ball would be an example of an elastic collision. This type of collision conserve both kinetic energy and momentum. The kinetic energy before they collide is equal after the collision.