Figure Q2 shows a spool with a mass of 20 kg and a radius of gyration ko = 0.16 m. The 15 kg block A is released from rest position. Apply the conservation of energy method to determine the distance that block A must fall for the spool to rotate at an angular velocity of 8 rad/s. (a) Apply the principle of work and energy to determine the tension in the cord when the block is in motion. (b)
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