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A river is flowing from west to east at ...

A river is flowing from west to east at a speed of `5m//s`. A man on the south bank of the river capable of swimming at `10m//s` in a still water wants to swim, across the river in a shortest time. He should swim in a direction

A

due North

B

`30^(@)` East of North

C

`30^(@)` West of North

D

`60^(@)` East of North

Text Solution

Verified by Experts

The correct Answer is:
A
For shortest time, one should at right angles to river current.
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