A river is flowing from west to east at a speed of 5 metres per minute. A man on the south bank of the river, capable of swimming at 10 metres per minute in still water, wants to swim across the river in the shortest time. He should swim in a direction

Due north

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$30^{\circ}$ east of north

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$30^{\circ}$ west of north

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$60^{\circ}$ east of north

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Solution

The correct option is A
Due north

For minimum time, the swimmer should swim perpendicular to the direction of river flow. So, he should swim due north.

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A river is flowing from west to east at a speed of 5 metres per minute. A man on the south bank of the river, capable of swimming at 10 metres per minute in still water, wants to swim across the river in the shortest time. He should swim in a direction

Q. A river is flowing from west to east at a speed of 5 metres per minute. A man on the south bank of the river, capable of swimming at 10 metres 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° east of north
(c) 30° north of west
(d) 60° east of north.

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Q. A river is flowing from east to west at a speed of

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. A man on south bank of river, capable of swimming

10 m / m i n

in still water wants to swim across the river in shortest time; he should swim

Q. A river is flowing from west to east at a speed of 5 m/minute. In what direction should a man on the south bank of the river capable of swimming at 10 m/min, in still water should swim to cross the water in shortest time ?

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A river is flowing from west to east at a speed of 5 metres per minute. A man on the south bank of the river, capable of swimming at 10 metres per minute in still water, wants to swim across the river in the shortest time. He should swim in a direction

The correct option is A Due north For minimum time, the swimmer should swim perpendicular to the direction of river flow. So, he should swim due north.

The correct option is A
Due north

For minimum time, the swimmer should swim perpendicular to the direction of river flow. So, he should swim due north.