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A chain lying on the ground is 10 m long and its mass is 60 kg....

A chain lying on the ground is 10 m long and its mass is 60 kg. How much work (in J) is required to raise one end of the chain to a height of 4 m? (Use 9.8 m/s2 for g.)

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please comment if you have any doubts will clarify

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