A swimmer can swim in still water with a speed of 3 km - hr- Rate of flow of river is 6 km - hr- If the swimmer swims at angle 60- with flow of river- find speed of swimmer as seen by person- who is moving in a boat in the river- A- 9 km - hrB- 3 km - hrC- 7 km - hrD- 2 km - hr

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Standard XII

Physics

Relative Velocity in 2D

A swimmer can...

Question

A swimmer can swim in still water with a speed of 3 km/hr. Rate of flow of river is 6 km/hr. If the swimmer swims at angle $60^{o}$ with flow of river, find speed of swimmer as seen by person, who is moving in a boat in the river.

9 km/hr

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3 km/hr

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7 km/hr

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2 km/hr

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Solution

The correct option is B 3 km/hr
Swimmer speed as seen by tube in river is same as speed in still water.

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Similar questions

Q. A swimmer can swim in still water with a speed of 3 km/hr. Rate of flow of river is 6 km/hr. If the swimmer swims at angle

60^{o}

with flow of river, find speed of swimmer as seen by person, who is moving in a boat in the river.

Q. A swimmer can swim with speed 6 km/hr in still water, a river is flowing with speed of 3 km/hr, which of the following is incorrect (width of river = 1 km)

Q. A river having width

500 m

is flowing with speed

3 k m / h .

A swimmer who can swim with speed

6 k m / h

in still water, has to reach directly opposite point on the other bank. He should swim at angle

θ

with the flow of river. The value of

θ

A river is flowing with a speed of 1 km/hr. A swimmer wants to go to point 'C' starting from 'A'. He swims with a speed of 5 km/hr at an angle $θ$ w.r.t the river flow. If AB = BC = 400 m. At what angle with river bank should swimmer swim?

Q. Consider a river

500 m

wide. Speed of river water is

5 k m / h r

. Swimmers speed in still water is

3 k m / h r

. If swimmer wants to reach a point directly opposite the point from where he started to swim, find minimum distance he has to walk.

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A swimmer can swim in still water with a speed of 3 km/hr. Rate of flow of river is 6 km/hr. If the swimmer swims at angle 60o with flow of river, find speed of swimmer as seen by person, who is moving in a boat in the river.

The correct option is B 3 km/hrSwimmer speed as seen by tube in river is same as speed in still water.

A swimmer can swim in still water with a speed of 3 km/hr. Rate of flow of river is 6 km/hr. If the swimmer swims at angle $60^{o}$ with flow of river, find speed of swimmer as seen by person, who is moving in a boat in the river.

The correct option is B 3 km/hr
Swimmer speed as seen by tube in river is same as speed in still water.