Question: A chain lying on the ground is 9 m long and its mass is 7 5 kg . How much work is required to raise

A chain lying on the ground is 9 m long and its mass is 75 kg. How much work is required to raise one end of the chain to a height of 5 m?
(a) Show how to approximate the required work by a Riemann sum. Give your answer using the form below. (If you need to enter - or , type -INFINITY or INFINITY.)

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