Questions
A person can swim in still water at 5 m/s. He moves in a river of velocity 3 m/s. First down the stream next same distance up the steam the ratio of times taken are
detailed solution
Correct option is C
t1=dvb+vw t2=dvb−vw t1t2=vb−vwvb+vw=5−35+3=28=14Talk to our academic expert!
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A body which has a speed of 5km/hr in still water crosses a river of width 1km along the shortest possible path in 15minutes. The velocity of the river water in km/hr is
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