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A river is flowing with a speed of 1 km/...

A river is flowing with a speed of 1 km/hr. A swimmer wants to go to point C starting from A. He swims with a speed of 5km/hr. at an angle `theta`. W.r.t. the river flow. If AB=BC=400m at what angle with river tank shou ld swimmer swim?

A

`37^(@)`

B

`53^(@)`

C

`0^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
b
`(5sin theta)xxt=0.4`
`(5 cos theta+1)t=0.4`
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