Calculate the work required to lift a 10-m chain over the side of a building (Figure 13).

Question:

Calculate the work required to lift a 10-m chain over the side of a building (Figure 13). Assume that the chain has a density of 8 kg/m. Break up the chain into N segments, estimate the work performed on a segment, and compute the limit as N →∞as an integral.

D Segment of length Ay