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A rever 500 m wide flows at a rate at a ...

A rever `500 m` wide flows at a rate at a rate of `4 km h^(-1)`. A swinmmer who can swin at `8 km h^(-1)`. In still water, wishes to cross the river straight . (i) Along what direection must he strike? (ii) What should be his resultant velocity. (ii) What is the time of crossing the river?

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PHYSICS GALAXY - ASHISH ARORA-KINEMATICS-Practice Exercise
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  3. A rever 500 m wide flows at a rate at a rate of 4 km h^(-1). A swinmme...

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

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

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

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

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

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

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

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

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

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

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