Meriam, Kraige & Bolton — Kinetics of Particles: Problem 3_56

3/56 A 0.2-kg particle \(P\) is constrained to move along the vertical-plane circular slot of radius \(r = 0.5\) m and is confined to the slot of arm \(OA\), which rotates about a horizontal axis through \(O\) with a constant angular rate \(\Omega = 3\) rad/s. For the instant when \(\beta = 20^\circ\), determine the force \(N\) exerted on the particle by the circular constraint and the force \(R\) exerted on it by the slotted arm.