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0.45 m k 300 N/m 0.9 m Figure Q3 Rods AB and BC have a mass of 7.5 and 15 kg, respectively. Collar C, which slides freely along the smooth vertical guide, has a mass of 2.5 kg. The spring is unstretched when o, determine the angular velocity of the rods If the system is released from rest when when the spring is fully stretched. (25 Marks)
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