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Rotation: Angular Velocity Dynamics

Problem #: 2 | Variant #: 4

A 7.967 kg, 1.66 x 0.96 m rectangular piece of plywood is horizontally mounted in such a way that it can be spun about its center. There is a 0.7387 N-m torque while it is rotating due to friction in the bearings. If it is set spinning at a rate of 78.6 rpm how long will it take to stop rotating?

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