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Work, Energy and Power
A collision between two or more bodies is defined as the mutual interaction of the bodies for a short interval of time due to which energy and momentum of the colliding bodies transfer and change.
For the transfer of momentum and energy, physical interaction is not necessary.
Two types of collisions are:
(i) Elastic collision,
(ii) Inelastic collision.
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By eating two apples, a person starts pushing the wall of room. If food value of apple is 100 calories per apple, how much work he will do in pushing the wall in one hour?
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