A cylinder with rotational Inertia I, = 3.4 kg • m? rotates clockwise about a vertical axis through its center with angular speed w, = 5.4 rad/s. A second cylinder with rotational Inertla I, = 1.1 kg · m2 rotates counterclockwise about the same axis with angular speed w, = 7.0 rad/s. If the cylinders couple so they have the same rotational axis, what is the angular speed of the combination (In rad/s)? rad/s What percentage of the original kinetic energy is lost to friction?
A cylinder with rotational Inertia I, = 3.4 kg • m? rotates clockwise about a vertical axis through its center with angular speed w, = 5.4 rad/s. A second cylinder with rotational Inertla I, = 1.1 kg · m2 rotates counterclockwise about the same axis with angular speed w, = 7.0 rad/s. If the cylinders couple so they have the same rotational axis, what is the angular speed of the combination (In rad/s)? rad/s What percentage of the original kinetic energy is lost to friction?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section10.4: Rotational Kinetic Energy
Problem 10.4QQ
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