The combined weight of the load and the platform is 200 lb, with the center of gravity loc...

The combined weight of the load and the platform is 200 lb, with the center of gravity located at G. If a couple moment of M = 900 lb•ft is applied to link AB, determine the angular velocity of links AB and CD at the instant θ = 0°. The system is at rest when θ = 0°. Neglect the weight of the links.