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A man can swim directly a stream of widt...

A man can swim directly a stream of width `100m` in `4` minutes, when there is no current of water and in `5 minutes` when there is current of water. The velocity of the current of water in the stream is

A

`15ms^(-1)`

B

`5ms^(-1)`

C

`2.5ms^(-1)`

D

`0.25ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
`t_(1)=d/V_(B),t_(2)=d/sqrt(V_(B)^(2)-V_(W)^(2))`
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