A 250-kg flywheel is at rest when a constant 300 N m couple is applied at
Question:
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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Ost 28s At t 28s Principle of impulse and momentum Moments about axle a ...View the full answer
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