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

A river is flowing from west to east with a speed of `5 m//min.` A man can swim in still water with a velocity `10m//min.` In which direction should the man swim so as to take the shortest possible path to go to the south.

A

`30^@` with downstream

B

` 60^@` with downstream

C

`120^@` with downstream

D

South

Text Solution

Verified by Experts

The correct Answer is:
C
For shortest distance `v_m sin theta = v_r`

`rArr sin theta = 5/10`
`theta = 30^@`
angle with downstream =`90 + 30 = 120^@`
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