when he reaches to opposite bank. For x to be minimum the person should swim at an angle alpha with the direction of the flow of water

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A man can swim with velocity v relative to water.He has to cross a river of width d flowing with a velocity u(u>v). The distance traveled by man along the flow is x, when he reaches to opposite bank. For x to be minimum the person should swim at an angle alpha with the direction of the flow of water, where alpha is
16
Sep
A man can swim with velocity v relative to water.He has to cross a river of width d flowing with a velocity u(u>v). The distance traveled by man along the flow is x, when he reaches to opposite bank. For x to be minimum the person should swim at an angle alpha with the direction [...]
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Tags: A man can swim with velocity v relative to water.He has to cross a river of width d flowing with a velocity u(u>v). The distance traveled by man along the flow is x , when he reaches to opposite bank. For x to be minimum the person should swim at an angle alpha with the direction of the flow of water , where alpha is ,