P19. A cylinder with mass of M and radius R can rotate about a vertical, frictionless axle. A se- cond cylinder, this one having mass m and radius r and initially rotating with angular speed wo, drops onto the first cylinder from small height (see the figu- re). Because of friction between the surfaces, the two eventually reach the same angular speed w. Wo m M R a) Find the value of w. b) Calculate the ratio of the final to the initial ro- tational energy. 3.

P19. A cylinder with mass of M and radius R can rotate about a vertical, frictionless axle. A se- cond cylinder, this one having mass m and radius r and initially rotating with angular speed wo, drops onto the first cylinder from small height (see the figu- re). Because of friction between the surfaces, the two eventually reach the same angular speed w. Wo m M R a) Find the value of w. b) Calculate the ratio of the final to the initial ro- tational energy. 3.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 89AP: A solid cylinder of mass 2.0 kg and radius 20 cm is rotating counterclockwise around a vertical axis...

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