A ball is dropped from a height of 20   m . If the coefficient of restitution for the collision between…

A ball is dropped from a height of 20 m. If the coefficient of restitution for the collision between ball and floor is 0.5, after hitting the floor, the ball rebounds to a height of ______ m.

Solution

As we know h'=e2h, where h'=height after the collision, h=height before the collision and e=coefficient of restitution.

Therefore,

h'=0.52×20 m=5 m

Asked in: JEE Main 2023 (31 Jan Shift 2)

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