Answer Happy

The figure below shows a ball of mass m = 0.2 kg attached to one end of a rod of length L = 1.5 m and negligible mass which is free to rotate around a pivot through the other end. The ball is released from rest when the rod is horizontal as shown. At the bottom of its swing, the ball collides with a block of mass M = 0.3 kg which is at rest on a frictionless table. The collision is completely inelastic (the ball and block stick together). After the collision, the ball/block combination will continue to rotate around the pivot at the end of the rod. Find the vertical height above the table to which the ball/block combination rises. 0.2 kg 1.5 m Pivot 0.3 kg