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A man is rowing a boat up a stream w.r.t...

A man is rowing a boat up a stream w.r.t the shore. Is he doing a work? Explain.

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MBD-WORK, ENERGY AND POWER-EXAMPLE
  1. Shown in the figure a spring fixed at the bottomm end of all incline o...

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  2. Shown in the figure a spring fixed at the bottomm end of all incline o...

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  3. A block of mass m is attached to two unstrecthed of spring constant k1...

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  4. A 20 g bullet pierces through a plate of mass M1 = 1 kg and then comes...

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  5. Given that linear momentum of a system of particles is zero.

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  6. Given that linear momentum of a system of particles is zero.

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  7. A truck moves on a level road. Doe it do any work against gravity?

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  8. What happens to the P.E. when an elevator loses in coming down from th...

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  9. Name two situations whre variable force acts.

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  10. Does the work done in raising a box on a platform depend upon how fast...

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  11. Are kinetic and potential energies inter-convertible?

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  12. Where from the kinetic energy of falling rain drops come?

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  13. What are the factors on which the work done depends?

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  14. Under what conditions, the work done by a fore is maximum and minimum

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  15. A man is rowing a boat up a stream w.r.t the shore. Is he doing a work...

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  16. A man continues to push a rock for some time but fails to moe it. What...

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  17. What is represented by area under the force displacement curve?

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  18. What are conservattion and non-conservation forces? Explain with examp...

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  19. Show that sum of P.E. and k.E. of a freely falling body is conserved.

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  20. Define elastic collision. Show thaat in an elastic collision, relative...

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