Question

Suppose that a bucket containing 60 lbs of sand is tied to the end of the chain in the previous problem. How much work is required to lift the bucket and chain to the top of the building?

Previous problem

A 30 foot long chain weighing 90 pounds hangs over the edge of a 40-ft tall building.         Compute the work necessary to hoist it up the side of the building to the top. (You must          draw a model of the problem and identify all elements of the integral used to perform the calculation as they pertain to the physical problem to receive full credit).

Answer 1