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Question: A ball is dropped from a height of 1m. It co-efficient of restitution between surface and ball is 0....

A ball is dropped from a height of 1m. It co-efficient of restitution between surface and ball is 0.6, the ball rebound to a height of h

A

0.6 m

B

0.4 m

C

1 m

D

0.36

Answer

0.36

Explanation

Solution

v2 = 2gh

v12=e2v2v_{1}^{2} = e^{2}v^{2} = 2e2gh

⇒ 2gh1 = e22gh

h1 = e2h = (0.6)2 × 1 = 0.36 m