1.

A swinner capable of swimming with velocity u relative to water jumps in a flowing rever having velocity v. The man swims a distance d down stream and return back to the original position . Find out the time taken in camplete motion.

Answer»

SOLUTION :`t=t_("down")+t_("up")`
`=d/(V+U)+d/(u-v)=(2du)/(u^(2)-v^(2))`


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