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Question

A man is capable of swimming at 10 m/s in still water. If he has to cross a river flowing at 5 m/s and reach the opposite shore in the least possible time, how far along the river will he drift if distance between the two shore is 100 m.

A
5 m
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B
10 m
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C
50 m
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D
100 m
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Solution

The correct option is C 50 m

drift =Vrg×100Vmr=5×10010=50 m.

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