A simple clutch consists of two cylindrical plates that can be pressed together to connect two sections of an axle, as needed, in a piece of machinery. The two plates have masses M, = 6.0 kg and M. = 9.0 kg, with equal radii R, = 0.60 m. They are initially separated. Plate M, is accelerated from rest to an angular velocity e», = 7.2 rad/s in time Ar = 2.0 s. Calculate (a) the angular momentum of M, and (b) the torque required to have accelerated M, from rest to 9- (c) Next, plate Mg, initially at rest but free to rotate without friction, is placed in firm contact with freely rotating plate M, and the two plates both rotate at a constant angular velocity o, which is considerably less than o. Why does this happen, and what is e,?

A simple clutch consists of two cylindrical plates that can be pressed together to connect two sections of an axle, as needed, in a piece of machinery. The two plates have masses M, = 6.0 kg and M. = 9.0 kg, with equal radii R, = 0.60 m. They are initially separated. Plate M, is accelerated from rest to an angular velocity e», = 7.2 rad/s in time Ar = 2.0 s. Calculate (a) the angular momentum of M, and (b) the torque required to have accelerated M, from rest to 9- (c) Next, plate Mg, initially at rest but free to rotate without friction, is placed in firm contact with freely rotating plate M, and the two plates both rotate at a constant angular velocity o, which is considerably less than o. Why does this happen, and what is e,?

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 49P: The blades of a wind turbine are 30 m in length and rotate at a maximum rotation rate of 20 rev/min....

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