How much work is done lifting a 25-ft chain over the side of a building? Assume that the chain has a density of 4 lb/ft. Hint: Break up the chain into N segments, estimate the work performed on a segment, and compute the limit as N approaches infinity as an integral.(adsbygoogle = window.adsbygoogle || []).push({});

(The small segment of the chain of length delta y located y feet from the top is lefted through a vertical distance y.)

Force = g*density*volume...?

whats the volume of a segment of the chain, im having difficulty.

please help

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# Work Done lifting a chain

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