A river is flowing from west to eas...
Question
A river is flowing from west to east at a speed of 5 meters per minute. A man on the south bank of the river, capable of swimming at 10 meters per minute in still
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A river is flowing from west to east at a speed of 5 meters per minute. A man on the south bank of the river, capable of swimming at 10 meters per minute in still water, wants to swim across the river in the shortest time. He should swim in a direction:
(A) Due north
(B) ( 30^{circ} ) east of north
(C) ( 30^{circ} ) north of west
(D) ( 60^{circ} ) east of north

JEE/Engineering Exams
Physics
Solution
422
Rating
3.0 (5 ratings)
A river is flowing from west to east at a speed of 5 meters per minute. A man on the south bank of the river, capable of swimming at 10 meters per minute in still water, wants to swim across the river in the shortest time. He should swim in a direction
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For shortest time he should apply his potential to cross river. Thus he should swim I to North direction.

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