The slotted arm OA rotates about a fixed axis through O. At the instant under consideration, 9 = 30?, ? = 45 deg/s, and ? = 20 deg /s ² . Determine the forces applied by both arm OA and the sides of the slot to the 0.2-kg slider B. Neglect all friction, and let L = 0.6 m. The motion occurs in a vertical plane.

6 -L- B m A