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A man can swim at a speed of 3 km/h in s...

A man can swim at a speed of 3 km/h in still water. He wants t cross a 500 m wide river flowing at 2 km/h. He flow while swimming. A. Find the time he takes to cross the river. b.At what point on the opposite bank will he arrive?

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The correct Answer is:
[`sin^(-1) (3//7)` from the normal direction , 12.65 min]
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PHYSICS GALAXY - ASHISH ARORA-KINEMATICS-Practice Exercise
  1. A rever 500 m wide flows at a rate at a rate of 4 km h^(-1). A swinmme...

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  2. An aeroplane takes off from Mumbai to Delhi with velocity 50 kph in no...

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  3. A man can swim at a speed of 3 km/h in still water. He wants t cross a...

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  4. Two boats, A and B, move away from a buoy anchored at the middle of a ...

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  5. A man running on the horizontal road at 8 km h^(-1) find the rain app...

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  6. Two trains A and B are approaching each other on a straight track, the...

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  7. A body starts from rest at A and moves with uniform accelerationa in a...

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  8. An aeroplane has to go from a point A to another point B, 500 km away ...

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  9. Find the time an aeroplane having velocity v takes to fly around a squ...

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  10. A man swimming in a river from a point. A on one bank has to reach a p...

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  11. The coordinates of a bird flying in the xy-plane are x = 2 - alpha t a...

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  12. On a smooth horizontal platform a mass of 2 kg is dragged with a horiz...

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  13. A ball is thrown straight up in air with an initial velocity u. Air ex...

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  14. A boy releases a toy plane from the top of a high hill of height H. Hi...

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  15. The position vector of a particle P with respect to a stationary point...

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  16. The motion of a particle restricted to move in a two dimensional plane...

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  17. A stone is thrown from the top of a tower of height 50 m with a veloci...

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  18. A stone is thrown up from the top of a tower 20,m with a velocity of 2...

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  19. Two bodies are thrown at the same time and in opposite directions and ...

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  20. A ball rolls off top of a staircase with a horizontal velocity u m s^-...

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