You are standing at the very rear of a raft of length L = 6.4 m and mass M = 132 kg that is at rest in a lake with its prow only 0.50 m from the end of the pier. Your mass is m = 59 kg. Neglect frictional forces between the raft and the water. how far from the end of the pier is the center of mass of the you-raft system?