A Disk Whose Rotational Inertia Is 450 Kg∙m² Hangs from a Wire

question 18

Multiple Choice

A disk whose rotational inertia is 450 kg∙m² hangs from a wire whose torsion constant is 2300 N∙m/rad.What is the angular frequency of its torsional oscillations?

• A)0.20 rad/s
• B)0.44 rad/s
• C)1.0 rad/s
• D)2.3 rad/s
• E)5.1 rad/s

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Definitions:

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