Meriam, Kraige & Bolton — Plane Kinetics of Rigid Bodies: Problem 6_50

6/50 The right-angle plate is formed from a flat plate having a mass \(\rho\) per unit area and is welded to the horizontal shaft mounted in the bearing at \(O\). If the shaft is free to rotate, determine the initial angular acceleration \(\alpha\) of the plate when it is released from rest with the upper surface in the horizontal plane. Also determine the \(y\)- and \(z\)-components of the resultant force on the shaft at \(O\).