Question: (a)How much work W is done in pulling the rope to the top of the building? Show how to approximate the required work by a

(a)How much work W is done in pulling the rope to the top of the building? Show how to approximate the required work by a Riemann sum, then express the work as an integral and evaluate it.Since the rope weighs 0.4 lb/ft, the portion of the rope below the top of the building from x ft to (x +x) ft weighsx lb.

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