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State and explain work energy principle....

State and explain work energy principle.

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PRADEEP-WORK, ENERGY AND POWER-Long Answer Question
  1. What is meant by power and energy ? Give their units.

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  2. Explain the meaning of K.E. with examples. Obtain an expression for K...

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  3. State and explain work energy principle.

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  4. What do you mean by potential energy ? Give any two examples of potent...

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  5. Derive the expression for gravitational potential energy?

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  6. Explain what is meant by potential energy of a spring ? Obtaining an e...

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  7. Mention some of the different forms of energy and discuss them briefly...

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  8. What is meant by mass energy equivalence ? Discuss its significance in...

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  9. State and establish principle of conservation of energy.

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  10. How do vibrations of a simple pendulum and motion of a ball over a wat...

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  11. What is meant by a collision ? Discuss two types of collision with the...

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  12. Discuss elastic collision in one dimension. Obtain expressions for vel...

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  13. Discuss briefly inelastic collisions in one dimension.

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  14. Give a brief account of elastic collisions in two dimensions.

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  15. Briefly analyse inelastic collision in two dimensions.

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  16. A block of mass 1kg is pushed up a surface inclined to horizontal at a...

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  17. A curved suface is shown in figure. The portion BCD is free of frictio...

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  18. A rocket accelerates straight up by ejecting gas downwards. In a sma...

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  19. Two identical steel cubes (masses 50g, side 1cm) collide head on face ...

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  20. A baloon filled with helium rises against gravity increasing its poten...

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