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A person aiming to reach the exactly opp...

A person aiming to reach the exactly opposite point on the bank of a stream is swimming with a speed of `0.5(m)/(s)` at an angle of `120^@` with the direction of flow of water. The speed of water in the stream is

A

`1m//s`

B

`0.5 m//s`

C

`0.25 m//s`

D

`0.433 m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
To reach directely opposite, the velocity perpendicular to the line `AB` should be zero.

`(v_(m//g))_(x)=0.5sin30^(@)-u=0`
`u=0.25 m//s`
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