Question

A m1 14.0 kg object and a m2 12.0 kg object are suspended, joined by a cond that passes over a pulley with a radius of 10.0 cm and a mass of 3.00 kg (Fig. P10.46). The cord has a negligible mass and does not slip on the pulley. The pulley rotates on its axis without friction. The objects start from rest 3.00 m apart. Treating the pulley as a uniform disk,determine the speeds of the two objects as they pass each other. (Hint: There are two ways to do this problem (1) The easy method is with conservation of energy; (2) The hard method is with torque and angular acceleration. If you choose this more challenging method, note that the tensions on either side of the pulley are NOT the same M 3.00 kg R 0.0 cm 3.00 m Figure P10.46

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