Answer to Question #252523 in Physics for Jessy

Question

A uniform, solid metal disk of mass 6.50 kg and diame-
ter 24.0 cm hangs in a horizontal plane, supported at its center by a
vertical metal wire. You find that it requires a horizontal force of
4.23 N tangent to the rim of the disk to turn it by thus twist-
ing the wire. You now remove this force and release the disk from
rest. (a) What is the torsion constant for the metal wire? (b) What
are the frequency and period of the torsional oscillations of the
disk? (c) Write the equation of motion theta (t) for the disk.

Answer 1

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