A swimmer wants to cross a river which is flowing at a speed ' 
'. If the swimmer can swim in still water at speed ' 
', the direction he should swim to cross the river in least time is
A
Along the flow of river
B
Opposite to the flow of river
C
Perpendicular t ò the flow of river
D
to the flow of river
Text Solution
Verified by ExpertsThe correct answer is:
C
If the swimmer wants to cross the river in least time than he must swim perpendicular to the flow of the river.
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