Make a complete dynamic analysis of the four-bar linkage in the posture when 2 = 90, 3

Make a complete dynamic analysis of the four-bar linkage in the posture when θ2 = 90◦,

θ3 = 23.9◦, and θ4 = 91.7◦. For the constant angular velocity ω2 = 32 rad/s ccw, the known kinematics are α3 = 221 rad/s2 ccw,

α4 = 122 rad/s2 ccw, AG3 = 88.6 m/s2∠255◦,

and AG4 = 32.6 m/s2∠244◦. There is an external force FC = 632 kN∠342◦ acting at point C. The masses and mass moments of inertia of the links are m2 = 0.5 kg, m3 = 4 kg, m4 = 1.5 kg, IG2 =

0.005 N · m ·s2, IG3 = 0.011 N · m ·s2, and IG4 =

0.002 3 N ·m·s2.