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A ball is dropped from a height of 5 m o...

A ball is dropped from a height of `5 m` onto a sandy floor and penetrates the sand up to 1 m before coming to rest. The retardation of the ball in sand (assuming it to be uniform) will be

A

`25 m//s^(2)`

B

`50 m//s^(2)`

C

`75 m//s^(2)`

D

`100 m//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`A` to `B: v^(2)=2gxx5=100`
`B` to `C: 0=v^(2)-2axx1`
`a=50 m//s^(2)`
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Knowledge Check

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