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Prove that potential energy = mgh....

Prove that potential energy = mgh.

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R G PUBLICATION-WORK AND ENERGY-EXAMPLE
  1. What are the two forms of mechanical energy?

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  2. Mention names of different forms of energy?

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  3. What do you mean by transformation of energy?

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  4. If force is applied on the body in the direction of motion then ?

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  5. How potential energy is stored in a powerful stretched spring?

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  6. Which energy is stored in wrist watch?

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  7. A body of mass ‘m’ is moving with velocity ‘v' .If the mass of the bod...

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  8. A body of mass ‘m’ is moving with velocity ‘v’: If the velocity is dou...

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  9. Can an object have kinetic energy even if its momentum is zero? Explai...

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  10. If a body of mass m is moving with velocity v then prove that kinetic ...

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  11. Prove that potential energy = mgh.

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  12. what is law of conservation of energy?

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  13. Explain the relationship between energy and power.

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  14. A body age of mass 50 kilogram, what is his weight?

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  15. How much work does a boy of mass 50kg do when he climbs a height 30 me...

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  16. On the body of machine is written 4H.P. Express its power in watt.

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  17. A boy of mass 50 kg runs up to a stair case of 45 steps in 9 s. If the...

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  18. A body of mass 30 kg is raised from the floor to a table height 1 mete...

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  19. What is the kinetic energy of a body of mass 50 kg after it has fallen...

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  20. A 60 watt bulb burns for 5 hours. What is the energy consume?

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