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Work, Energy and Power
The collision is said to be a perfectly inelastic collision if the colliding bodies stick together after the collision.
Coefficient of restitution for inelastic collision is zero.
Example: A bullet is fired into the wooden block and remains embedded inside the block.
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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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