A flat uniform circular disk has a massof 2.30 kg and a radius of58.0 cm. It is suspended in ahorizontal plane by a vertical wire attached to its center. If thedisk is rotated 2.50 rad about thewire, a torque of 0.0800 N·m isrequired to maintain that orientation.
(a) Calculate the rotational inertia of the disk about the wire.
kg·m2
(b) Calculate the torsion constant.
N·m
(c) Calculate the angularfrequency of this torsion pendulum when it is set oscillating.
rad/s