: A Plate (m=1.80kg 24cm x 16cm) is attached to a slender rod (L= 122cm m=5.20k 20kg) is free to pivot one end. The system is released from rest in the horizontal position. a) what's angular speed of the system. after falling through 0=80°? b) whats translational speed of the center of mass of the plate falling through angle 0 = 80°.