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A man is crossing a river flowing with v...

A man is crossing a river flowing with velocity of `5m//s`. He reaches a point directly across at a distance of 60m in 5 sec. His velocity in still water should be

A

12 m/s

B

13 m/s

C

5 m/s

D

10 m/s

Text Solution

Verified by Experts

The correct Answer is:
B

`u=(60)/(5) = 12 m//s , v5m//s`
`sqrt(v^(2)+u^(2))=sqrt(5^(2)+12 ^(2))=13 m//s`
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