math calc 2
posted by arnulfo .
a 30 m 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 5 kg/m. how much work is required to wind the entire chain onto the cylinder using the winch?
math calc 2 -
Hint: Think of the difference in potential energies of the initial and final positions of the chain.