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

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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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