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The momentum of an object is doubled. Ho...

The momentum of an object is doubled. How does its K.E. change?

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K.E. becomes four times.
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PRADEEP-WORK, ENERGY AND POWER-Very Short Anwer Question.
  1. Name the process in which momentum changes but KE does not.

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  2. A shot fired from a cannon explodes in air. What will be the changes i...

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  3. The momentum of an object is doubled. How does its K.E. change?

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  4. Can P.E. of an object be negative?

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  5. Does the work done in moving a body depend on how fast or how slow the...

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  6. A spring is cut into two equal halves. How is the spring constant of e...

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  7. Is it possible exert a force which does work on a body without changin...

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  8. In case of a moving body as force of friction is mumg, can we regard m...

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  9. A ball of mass m moving with vel. V strikes head on elastically with a...

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  10. Is it possible to have a collision in which the whole of KE is lost?

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  11. If two objects collide and one is initially at rest (a) is it possible...

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  12. In which, elastic or inelastic collision, the momentum is conserved ? ...

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  13. Which physical quantities are conserved in an elastic collision?

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  14. Which physical quantity is conserved in both, elastic and inelastic co...

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  15. If two bodies stick together after collision. Will the collision be el...

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  16. A bullet gets embedded in a wooden block. Where does its KE go?

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  17. A rough inclined plane is placed on a cart moving with a constant velo...

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  18. Why is electrical power required at all when the elevatore is descendi...

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  19. A body is being raised to a height h from the surface of earth. What i...

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  20. Calculate the work done by a car against gravity in moving along a str...

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