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JEE Main202331 Jan 2023Evening ShiftPhysicsCenter of Mass, Momentum and CollisionActual

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 .

Correct answer

0

Step-by-step solution

As we know h ' = e 2 h , where h ' = height after the collision, h = height before the collision and e = coefficient of restitution. Therefore, h ' = 0 . 5 2 × 20   m = 5   m

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