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Which of the following is true ?...

Which of the following is true ?

A

Momentum is conserved in all collisions, but kinetic energy is conserved only in inelastic collisions.

B

Neither momentum nor kinetic energy is conserved in inelastic collisions.

C

Momentum is conserved in all collisions but not kinetic energy

D

Both momentum and kinetic energy are conserved in all collisions

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SL ARORA-Work, Energy and power-EXERCISE
  1. The figure shows a smooth curved track terminating in a smooth horizon...

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  2. A particle moves along a curve of unknown shape but magnitude of force...

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  3. Which of the following is true ?

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  4. Two particles are seen to collide and move jointly together after the ...

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  5. A metal ball of mass 2 kg moving with a velocity of 36km//h has a head...

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  6. A particle of mass m, moving with velocity v collides a stationary par...

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  7. In an elastic collision

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  8. A body of mass 4 kg moving with velocity 12 m//s collides with another...

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  9. A block having mass m collides with an another stationary block having...

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  10. A ball is bouncing down a set of stairs. The coefficient of restitutio...

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  11. If linear momentum if increased by 50% then kinetic energy will be inc...

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  12. A body moves from rest with a constant acceleration. Which one of the ...

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  13. A ball collides impinges directly on a similar ball at rest. The first...

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  14. A body of mass m(1) collides elastically with another body of mass m(2...

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  15. When a body moves in a circular path, no work is done by the force sin...

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  16. Assertion: Mass and energy are not conserved separately, but are conse...

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  17. Assertion : In an elastic collision of two billiard balls, the total ...

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  18. If the momentum of a body increases by 0.01%, its kinetic energy will ...

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  19. Assertion: When a ball collised elastically with a floor, it rebounds ...

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  20. In the following questions, a statement of assertion is followed by a ...

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