A circular disc of mass 10 kg is suspended by a wire attached to its centre. The wire is twisted by rotating the disc and released. The period of torsional oscillations is found to be 1-5 s. The radius of the disc is 15 cm. Determine the torsional spring constant of the wire. (Torsional spring constant a is defined by the relation J = - a 8, where J is the restoring couple and 0 the angle of twist).
A circular disc of mass 10 kg is suspended by a wire attached to its centre. The wire is twisted by rotating the disc and released. The period of torsional oscillations is found to be 1-5 s. The radius of the disc is 15 cm. Determine the torsional spring constant of the wire. (Torsional spring constant a is defined by the relation J = - a 8, where J is the restoring couple and 0 the angle of twist).
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Torsional spring constant?
Transcribed Image Text:A circular disc of mass 10 kg is suspended by a wire attached to its centre. The wire is twisted by
rotating the disc and released. The period of torsional oscillations is found to be 1-5 s. The radius of
the disc is 15 cm. Determine the torsional spring constant of the wire. (Torsional spring constant a is
defined by the relation J = - oa 0, where J is the restoring couple and 0 the angle of twist).
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