Solve the problem.A 20-m-long chain hangs vertically from a cylinder attached to a winch. Assume there is no friction in the system and that the chain has a density of 10 kg/m. How much work is required to wind the entire chain onto the cylinder using the winch?
A. 4000g J
B. 3900g J
C. 2000g J
D. 200g J
Answer: C
Mathematics
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