The speed of a swimmer is 4 km h -l in still water. If the swimmer makes his strokes normal to the flow of river of width 1 km, he reaches a point 750 m down the stream on the opposite bank. The speed of the river water is_______km h -1 .
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(3)
time to cross the River width 
= 1000 m
is = 
Drift x = Vm/g x t
Where Vm/g is velocity of River w.r. to ground.
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