54. A cylinder with rotational inertia 11=2.0kg m2 rotates clockwise about a vertical axis through its center with angular speed w1=5.0rad/s. A second cylinder with rotational inertia 12=1.0kg m2 rotates counterclockwise about the same axis with angular speed w2=8.0rad/s. If the cylinders couple so they have the same rotational axis what is the angular speed of the combination? What percentage of the original kinetic energy is lost to friction?

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter10: Rotational Motion
Section: Chapter Questions
Problem 50P: A disk with moment of inertia I1 rotates about a frictionless, vertical axle with angular speed i. A...
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54 . A cylinder with rotational inertia 11=2.0kg.m2
rotates clockwise about a vertical axis through its
center with angular speed w1=5.0rad/s. A second
cylinder with rotational inertia 12=1.0kg·m2 rotates
counterclockwise about the same axis with angular
speed w2=8.0rad/s. If the cylinders couple so they
have the same rotational axis what is the angular
speed of the combination? What percentage of the
original kinetic energy is lost to friction?
Transcribed Image Text:54 . A cylinder with rotational inertia 11=2.0kg.m2 rotates clockwise about a vertical axis through its center with angular speed w1=5.0rad/s. A second cylinder with rotational inertia 12=1.0kg·m2 rotates counterclockwise about the same axis with angular speed w2=8.0rad/s. If the cylinders couple so they have the same rotational axis what is the angular speed of the combination? What percentage of the original kinetic energy is lost to friction?
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