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A man can swim with a speed of 4kmh^(-1)...

A man can swim with a speed of `4kmh^(-1)` in still water. He crosses a river 1km wise that flows steadly at `3kmh^(-1)`. If he makes his strokes normal to the river current, how far down the river does he go when he reaches the other bank?

A

`500m`

B

`600m`

C

`750m`

D

`850m`

Text Solution

Verified by Experts

The correct Answer is:
C
Time to cross river, `t=("Width of river")/("Speed of man")`
`=(1km)/(4kmh^(-1))=1/4h`
Distance moved along the river in time t
`=V_(r)xxt=3km^(-1)xx1/4h=3/4km=750m`
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Knowledge Check

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