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Question: 4 25pts a cylinder with moment of inertia i rotates...

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4. (25pts) A cylinder with moment of inertia I, rotates with angular velocity a, about a frictionless vertical axle. A second cylinder, with moment of inertia l2, initially not rotating, drops onto the first cylinder as shown in the figure on the right. Because the surfaces are rough, the two cylinders eventually reach the same angular speed o. (a) Calculate o. (b) Show that kinetic energy is lost in this situation, and calculate the ratio of the final to the initial kinetic energy Before Afer
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