A chain weighing $4 \mathrm { lb } / \mathrm { ft }$ hangs vertically from a winch located $11 \mathrm { ft }$ above the ground, and the free end of the chain is just touching the ground. Find the work done by the winch in pulling in the whole chain.

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The Answer of A chain weighing $4 \mathrm { lb } / \mathrm { ft }$ hangs vertically from a winch located $11 \mathrm { ft }$ above the ground, and the free end of the chain is just touching the ground. Find the work done by the winch in pulling in the whole chain.

A Chain Weighing 4lb/ft4 \mathrm { lb } / \mathrm { ft }4lb/ft

A Chain Weighing $4 \mathrm { lb } / \mathrm { ft }$