A rope or hinged-link bicycle-type chain of length L and mass ρ per unit length is relea...

A rope or hinged-link bicycle-type chain of length L and mass ρ per unit length is released from rest with x = 0. Determine the expression for the total force R exerted on the fixed platform by the chain as a function of x. Note that the hinged-link chain is a conservative system during all but the last increment of motion. Compare the result with that of Prob. 4/105 if the upward motion of the platform in that problem is taken to be zero.