15-43. Disc A in Figure P15-43 (IC = 8 kg m2), while rotating at 100 rpm,...

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15-43. Disc A in Figure P15-43 (IC = 8 kg m2), while rotating at 100 rpm, is lowered onto disc B (IC = 10.5 kg m2), causing the latter to rotate from rest. Assume no slipping and determine the angular velocity of B. 50-mm radius 125-mm radius 75-mm radius 15-43. Disc A in Figure P15-43 (IC = 8 kg m2), while rotating at 100 rpm, is lowered onto disc B (IC = 10.5 kg m2), causing the latter to rotate from rest. Assume no slipping and determine the angular velocity of B. 50-mm radius 125-mm radius 75-mm radius