13. Rotational Inertia & Energy
Conservation of Energy with Rotation
11:29 minutes
Problem 10.67
Textbook Question
Textbook Question(II) Two masses, mₐ = 35.0 kg and m₈ = 41.0 kg, are connected by a rope that hangs over a pulley (as in Fig. 10–67). The pulley is a uniform cylinder of radius R = 0.311 m and mass 3.1 kg. Initially mₐ is on the ground and m₈ rests 2.5 m above the ground. If the system is released, use conservation of energy to determine the speed of m₈ just before it strikes the ground. Assume the pulley bearing is frictionless.
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