Worksheet Ch. 11 (Angular Momentum) 1. A uniform rod of length L and mass 2m is free to rotate on a frictionless pin through its center of mass. At the end of rod on each side, there is a ball of radius 1.6 L and mass m attached to it. The system (rod+balls} is initially at rest in a horizontal position. A piece of clay of mass m! 10 drops from a height h meters above the center of one of the ball. and sticks to the ball after the collision. Find (a) the rotational inertia of the hellrod-ball system before the collision. (b) the angular velocity and angular acceleration of the system {ballrod-bal] plus the clay} right after the collision. is 4- cl Pi! \"l W