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A ball is dropped from a height of 20 m ...

A ball is dropped from a height of `20 m` on a floor for which `e = 1//2`. The height attained by the ball after the second collision

A

`1.25 m`

B

`2.5 m`

C

`5 m`

D

`10 m`

Text Solution

Verified by Experts

The correct Answer is:
C
`h_(2) = e^(4) h rArr = ((1)/(2))^(4) (20) = (20)/(16) = 1.25 m`
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