A 250-kg flywheel is at rest when a constant 300 N m couple is applied at
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A 250-kg flywheel is at rest when a constant 300 N ⋅ m couple is applied at time t = 0. At t = 28 s the flywheel reaches its rated speed of 3000 rpm and the couple is removed. Assuming that the kinetic friction results in a constant couple of magnitude 12.5 N ⋅ m, determine
(a) The radius of gyration of the flywheel,
(b) The time at which the flywheel comes to rest.
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Related Book For
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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