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A body of mass 5 kg moving with a veloci...

A body of mass 5 kg moving with a velocity 10 m/s collides with another body of the mass 20 kg at rest, and comes to rest. The velocity of the second body due to collision is

A

2.5 m/sec

B

7.5 m/sec

C

5 m/sec

D

10 m/sec

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SL ARORA-Work, Energy and power-EXERCISE
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  2. A body of mass M(1) collides elastically with another mass M(2) at res...

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  3. A body of mass 5 kg moving with a velocity 10 m/s collides with anothe...

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  4. A body is moving with a velocity v , breaks up into two equal parts. O...

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  5. A bomb is kept stationary at a point. It suddenly explodes into two fr...

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  6. A particle of mass m having velocity v moving towards north collides w...

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  7. A mass3in,initially at rest at the origin, explodes into three fragmen...

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  8. A body of mass 4m at rest explodes into three pieces. Two of the piece...

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  9. A bullet hits and gets embedded in a solid block resting on a friction...

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  10. The cofficient of restitution e for a perfectly elastic collision is

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

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

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

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

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

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

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

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

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

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