A 40-kg cylinder pulley with a radius of 0.2 m rotates at a constant angular speed of 4 rad/s. What is the rotational kinetic energy of the pulley? The moment of inertia for cylinder is given as /=1/2 mr?. A) 3.1J B) 5.6J 4.8 J D) 6.4J

A 40-kg cylinder pulley with a radius of 0.2 m rotates at a constant angular speed of 4 rad/s. What is the rotational kinetic energy of the pulley? The moment of inertia for cylinder is given as /=1/2 mr?. A) 3.1J B) 5.6J 4.8 J D) 6.4J

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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Question

A 40-kg cylinder pulley with a radius of 0.2 m rotates at a constant angular speed of 4 rad/s. What is the rotational kinetic energy of
the pulley? The moment of inertia for cylinder is given as /=1/2 mr?.
A) 3.1J
5.6 J
c) 4.8 J
D) 6.4J

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