Two masses, raA = 35.0 kg and raB = 38.0 kg, areconnected by a rope that hangsover a pulley (as in Fig. 10-59).The pulley is a uniform cylinder ofradius 0.381m and mass 3.1kg.Initially mA is on the ground andmB rests 2.5 m above the ground.If the system is released, useconservation of energy to determinethe speed of mB just beforeit strikes the ground. Assume thepulley bearing is frictionless.FIGURE 10-59 67.
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