A 400-lb flywheel is at rest when a constant 18 lb ft couple is applied. It

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A 400-lb flywheel is at rest when a constant 18 lb ⋅ ft couple is applied. It is observed that 4.3 min are required for the flywheel to reach its rated speed of 2400 rpm. Knowing that the radius of gyration of the flywheel is 14 in, determine the average magnitude of the couple due to kinetic friction in the bearing.

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Vector Mechanics for Engineers Statics and Dynamics

ISBN: 978-0073212227

8th Edition

Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell

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