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+1 vote
26.6k views
in Physics by (67.5k points)

A chain of mass m = 0.80 kg and length l= 1.5 m rests on a rough-surfaced table so that one of its ends hangs over the edge. The chain starts sliding off the table all by itself provided the overhanging part equals η= 1/3 of the chain length. What will be the total work performed by the friction forces acting on the chain by the moment it slides completely off the table?

1 Answer

+3 votes
by (83.9k points)
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Best answer

From the initial condition of the problem the limiting friction between the chain lying on the horizontal table equals the weight of the overhanging part of the chain, i.e

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