Meriam, Kraige & Bolton — Kinetics of Particles: Problem 3_59

3/59 The slotted arm $OA$ rotates about a fixed axis through $O$. At the instant under consideration, $\theta = 30^\circ$, $\dot{\theta} = 45\text{ deg/s}$, and $\ddot{\theta} = 20\text{ deg/s}^2$. Determine the forces applied by both arm $OA$ and the sides of the slot to the $0.2\text{-kg}$ slider $B$. Neglect all friction, and let $L = 0.6\text{ m}$. The motion occurs in a vertical plane.