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A ball is dropped from a height h on to ...

A ball is dropped from a height h on to a floor . If the cofficient of restitution is e, calculate the height the ball first rebounds ?

A

`e^2h`

B

`esqrth`

C

eh

D

`sqrteh`

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SL ARORA-Work, Energy and power-EXERCISE
  1. The cofficient of restitution e for a perfectly elastic collision is

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  2. A ball falls from rest from a height h onto a floor, and rebounds to a...

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  3. A ball is dropped from a height h on to a floor . If the cofficient of...

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  4. A ball falls vertically onto a floor with momentum p and then bounces ...

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  5. Two springs A and B are identical except that A is stiffer than B. If ...

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  6. Two springs Aand B are identical expect that A isstiffer than B.If the...

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  7. A rocket explodesin midair. Its total momentum -------------while tota...

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  8. The potential energy when two protons are brought closer and the poten...

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  9. What is work done in holding a 15kg suitcase while waiting for a bus f...

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  10. Assertion : The power of a pump which raises 100 kg of water in 10...

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  11. A motor boat is moving at a steady speed of 20ms^(-1). If the water re...

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  12. A stone projected vertically upwards from the ground reaches a maximum...

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  13. A particle of mass 4 m which is at rest explodes into three fragments....

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  14. The kinetic energy of a body decreases by 20%. What is the percentage ...

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  15. The power of an agent at any instant is equal to the dot product of it...

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  16. Two identical particles move --------- to eachother after elastic coll...

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  17. For a perfectly inelastic collision, the relative velocity of separati...

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  18. For a superelastic collision, the coefficient of restitution is-------...

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  19. Gravitation force is a ----------- force while force of friction is a...

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  20. A conservative force is equal to the negative gradient of ------------...

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