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By now much will the kinetic energy of a...

By now much will the kinetic energy of a body increase if its speed is doubled ?

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The kinetic energy `(E_k)` of the body will become four times as `E_k = (1)/(2) m upsilon^2 or E_k prop upsilon^2.`
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PRADEEP-WORK AND ENERGY-Very short Answer Question
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  2. When is work done by a force negative ?

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  3. When is work done by a force zero ?

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  7. Is energy a vector quantity ?

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  8. Name two forms of mechanical energy.

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  15. Give an example where potential energy is acquired by a body due to ch...

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  16. Name the type of energy possessed by a reised hammer.

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  17. Name the type of energy possessed by a stretched rabber band.

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  18. A cell converts one form of energy into another. Name the two forms.

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  19. Name the device which converts electrical energy into mechanical energ...

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