13 Dec Solve Prob. 14.87, assuming that the chain is bein
Solve Prob. 14.87, assuming that the chain is being lowered to the floor at a constant speedProb. 14.87 A chain of length l and mass m lies in a pile on the floor. If its end A is raised vertically at a constant speed v, express in terms of the length y of chain which is off the floor at any given instant (a) the magnitude of the force P applied to A, (b) the reaction of the floor.