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A body falls on a surface of coefficient...

A body falls on a surface of coefficient of restitution 0.6 from a height of 1 m . Then the body rebounds to a height of

A

1m

B

0.4m

C

0.6m

D

0.36m

Text Solution

Verified by Experts

The correct Answer is:
D
For this perfectly inelastic collision, we apply the principle of conservation of linear momentum.
`therefore m_1 u_1 +m_2 u_2 =(m_(1)+m_(2))v`
`=(2xx3 + 1 xx (-4))/(2+1) =(6-4)/(3)=2/3` m/s
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