amos has a mass of M=72kg. he wants to know what it feels like to fall and land on the surface of the moon, where acceleration due to gravity is only a=1.6m/s^2. He attaches a light rope to a box with mass m, and leaders that rope vertically over a pulley (negligible friction) that is attached to the ceiling. Then he holds onto the free end of the rope, and proceeds to step off of a chair and fall to the ground. what should be the value of m in order to replicate the sensation of landing on the surface of the moon?