14. [1pt ] * * * Hint: In this problem, the setup is much more challenging than the energy calculations! When calculating gravitational potential energy, we need to know the height of the center of mass. Where is the center of mass initially? Where is it when the rope is about to slide off the pulley? How far has it moved? y A limp rope with a mass of 2.14 kg and a length of 1.49 m is hung, initially at rest, on a frictionless peg that has a negligible radius (see figure). The short end has lengthy, = 0.51 m. What is the vertical velocity of the rope just as the end slides off the peg? Answer: Submit All Answers