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A man can swim with speed u with respect...

A man can swim with speed u with respect to river. The widith of river is d. The speed of the river is zero at the banks and increses linearly to `V_(0)` till mid stream of the river then decreases to zero to the other bank. When man crosses the river in shoetest time, drift is equal to: `("given" u gt v_(0))`

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