A torsional pendulum consists of a solid disk (mass = 3.0 kg,radius = 1.0 m) suspended by a wire attached to a rigid support.The body oscillates about the support wire. If the torsion constant 96 N . m, what is the angular frequency (in rad/s)?

A.) 5
B.) 4
C.) 10
D.) 9
E.)8

Question

A torsional pendulum consists of a solid disk (mass = 3.0 kg,radius = 1.0 m) suspended by a wire attached to a rigid support.The body oscillates about the support wire. If the torsion constant 96 N . m, what is the angular frequency (in rad/s)?

A.) 5
B.) 4
C.) 10
D.) 9
E.)8

vincent-lyon.fr · Answer

Do you know the equation of the SHM of this pendulum?

praxer · Answer

$$\color{blue}{\omega= \sqrt{\frac{k}{I}}\ => \omega = \sqrt{\frac{2k}{MR^2}}\ =>\omega = \sqrt{\frac{2*96}{3}} \ =>\omega= 8\frac{rad}{sec}}$$