A 50-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 chain onto the cylinder if a 50-kg block is attached to the end of the chain?
◦ 27,500g J
◦ 25,050g J
◦ 15,000g J
◦ 12,550g J