Engineering Mechanics - PKRB: Impulse and Momentum - Discussion

Discussion :: PKRB: Impulse and Momentum - General Questions (Q.No.8)


The flywheel A has a mass of 30 kg and a radius of gyration of kc = 95 mm. Disk B has a mass of 25 kg, is pinned at D, and is coupled to the flywheel using a belt which is subjected to a tension such that it does not slip at its contacting surfaces. If a motor supplies a counter-clockwise torque or twist to the flywheel, having a magnitude of M = (12t) N • m, where t is measured in seconds, determine the angular velocity of the disk 3 s after the motor is turned on. Initially, the flywheel is at rest.

[A]. = 232 rad/s
[B]. = 77.2 rad/s
[C]. = 115.9 rad/s
[D]. = 276 rad/s

Answer: Option C


No answer description available for this question.

Madesh said: (Jan 24, 2011)  
how to answer in this question

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