Problem 10. Rotational Dynamics: A uniform disk is mounted on a frictionless axle at its center. The moment of inertia of the disk for the axle is l=MR?. A light rope wrapped 2 around disk and a block of mass 4.0 kg is suspended from free end of the rope. The system is released from rest and the block descends as the disk rotates. If the block is accelerates downward at 4.8 m/s2 when it released, what it the mass of the disk?

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Chapter8: Rotational Motion
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Problem 10. Rotational Dynamics: A uniform disk is
mounted on a frictionless axle at its center. The moment of
inertia of the disk for the axle is /=MR2. A light rope wrapped
2
around disk and a block of mass 4.0 kg is suspended from free
end of the rope. The system is released from rest and the block
descends as the disk rotates. If the block is accelerates
downward at 4.8 m/s2 when it released, what it the mass of the
disk?
Transcribed Image Text:Problem 10. Rotational Dynamics: A uniform disk is mounted on a frictionless axle at its center. The moment of inertia of the disk for the axle is /=MR2. A light rope wrapped 2 around disk and a block of mass 4.0 kg is suspended from free end of the rope. The system is released from rest and the block descends as the disk rotates. If the block is accelerates downward at 4.8 m/s2 when it released, what it the mass of the disk?
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