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Sir, What do we mean by work energy?
Work is done when a force produces motion.For example,when an engine moves a train along a railway line,it is said to be doing work;a horse pulling the cart is also doing work;and a man climbing the stairs of a house is also doing work in moving himself against the force of gravity.


Energy is the ability to do work.The amount of energy possessed by a body is equal to the amount of work it can do when its energy is released.


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