KinematicsHard
Question
A river is flowing east to west at a speed of 5 m / min. A on south bank of river, capable of swimming 10m/min in still water, wants to swim across the river in shorter time; he should swim : -
Options
A.Due north
B.Due north - east
C.Due north - east with double the speed of river
D.None of these
Solution
For shortest time then maximum velocity is in the direction of displacement
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