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If R = 12 cm, M = 530 g, and m = 40 g (below), find the speed of the block after it has descended 50 cm starting from rest. Solve the problem using...

If R = 12 cm, M = 530 g, and m = 40 g (below), find the speed of the block after it has descended 50 cm starting from rest. Solve the problem using energy conservation principles. (Treat the pulley as a uniform disk.)

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