TA: Tomoyuki Nakayama Monday, March 2 nd , 2010 PHY 2048: Physic 1, Discussion Section 3695 Quiz 6 (Homework Set # 8) Name: UFID: Formula sheets are not allowed. Calculators are allowed. Do not store equations in your calculator. You need to show all of your work for full credit. ________________________________________________________________________________ A uniform spherical shell of mass M = 5.00 kg and radius R = 10.0 cm can rotate about a vertical axis on frictionless bearings. A massless cord passes around the equator of the shell, over a pulley of rotational inertia I = 2.00 × 10-3 kg m 2 and radius r = 4.00 cm, and is attached to a small object of mass m = 1.00 kg. There is no friction on the pulley’s axle; the cord does not slip on the pulley. The system is initially at rest. a) When the speed of the hanging mass is 1.00 m/s, what are the angular speeds of the sphere and pulley?
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