Chapter 10, Problem 96P

A thin stick of mass 0.2 kg and length $L=0.5\text{m}$ is attached to the rim of a metal disk of mass $M=2.0\text{kg}$ and radius $R=0.3\text{m}$ . The stick is free to rotate around a horizontal axis through its other end (see the following figure). (a) If the combinatin is related with the stick horizontal, what is the speed of the center of the disk when the stick is vertical? (b) What is the acceleration fo the center of the disk at the stick is released? (c) At the instant the stick passes through the vertical?