3. The following diagram shows a system made using a pulley and two masses, each of which is a flat plate. The pulley is created using a circular rim of mass M and radius R, and 6 spokes, each of which is a rod of mass M and length R. The massless string wrapped around the pulley connects the plates, one of which has mass M and is initially on the ground, and the other with mass 2M, a height h above the ground to begin. The system starts from rest before it is released and begins to move. What is the acceleration of the system? b. What is the speed of the more massive plate when it hits the ground? c. Assume that when it hits the ground, the heavier plate sticks, but the string remains "stuck" to the wheel so that it continues to pull the lighter plate up. How high does the lighter plate go? a