Two wheels of moment of inertia 4.2 kg.m? and 3.6 kg.m2 are set in rotation with angular speed 2.1 rad/s and 9.2 rad/s, respectively. When they are coupled face to face (as shown in the following figure) they rotate with a common angular speed o due to frictional forces, then what is the change in kinetic energy (0) of the wheels due to frictional forces?

Two wheels of moment of inertia 4.2 kg.m? and 3.6 kg.m2 are set in rotation with angular speed 2.1 rad/s and 9.2 rad/s, respectively. When they are coupled face to face (as shown in the following figure) they rotate with a common angular speed o due to frictional forces, then what is the change in kinetic energy (0) of the wheels due to frictional forces?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter12: Rotation I: Kinematics And Dynamics

Section: Chapter Questions

Problem 20PQ: A wheel starts from rest and in 12.65 s is rotating with an angular speed of 5.435 rad/s. a. Find...

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