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A river is flowing from west to east at a speed of 52  m per minute.  A man on the south bank of the river, capable of swimming at 10 m per minute in still water wants to swim across the river to a point directly opposite point.  He should then swim in a direction.

a
450 W of N
b
600 W of N
c
300 E of N
d
600 E of N

detailed solution

Correct option is A

sinα=VwVb=5210=22=12             ⇒α=450  W of N

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