The uniform sphere B, of radius r = 6 cm and mass mB = 5 kg, is rigidly attached to the uniform thin bar AB, which is pinned at A and has a mass mAB = 8 kg. The system rotates in the vertical plane. The spring CD has stiffness k = 2000 N/m and is designed so that the system is in static equilibrium when θ = 0°. Let L = 18.2 cm and h = 24.6 cm.
If the system is released from rest when θ = −30°, determine the angular speed of the arm for θ = 0.
Figure P8.32
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