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A heavy stone is thrown from a cliff of ...

A heavy stone is thrown from a cliff of height h in a given direction. The speed with which it hits the ground

A

is same as the speed of projection

B

must be larger than the speed of projection

C

must be independent of the speed of projection

D

may be smaller than the speed of projection

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-WORK, POWER & ENERGY -EXERCISE - I
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  2. Two inclined frictionless tracks, one gradual and the other steep meet...

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  3. A heavy stone is thrown from a cliff of height h in a given direction....

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  4. 40. Which of the diagrams correctly shows the change in kinetic energy...

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  5. A particle is acted upon by a force of constant magnitude which is alw...

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  6. Two spheres A and B collide. If the momentum of A is doubled in the co...

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  7. Internal forces can change

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  8. (A): Mass and energy are not conserved separately, but are conserved a...

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  9. Two bodies A and B of masses m, and m, moving with velocities V(1) and...

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  10. Two particles of equal masses have an elastic collision, the target pa...

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  11. . A bullet hits a block at rest on a frictionless horizontal surface a...

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  12. A heavier sphere moving eastward with a certain velocity .v. collides ...

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  13. When a ball hits a floor and rebounds after an inelastic collision,

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  14. Coefficient of restitution depends upon

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  15. Two particles of different masses collide head on. Then for the system

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  16. A particle moving with certain velocity collides elastically with anot...

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  17. Two bodies of equal masses moving mutually at right angles to each oth...

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  18. During the collision a relatively large force acts on each colliding p...

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  19. Choose the wrong statement

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  20. Which of the following is an example of completely inelastic collision

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