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# Dynamics Problem - Torque and Angular Acceleration

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A slender rod of mass Mr has a disk of mass Mo fastened to it at its end. It is pinned at 0 - a "frictionless" pin. The circular frequency in rad/s of the system for small oscillations is what?

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##### Solution Summary

This solution is provided in 150 words. It uses torque, angular acceleration and simple harmonic motion to find the angular frequency squared.

##### Solution Preview

If the system is displaced by small angle 'theta' from the vertical, the torque about the fastened end,
Mr*g*sin(theta)*(l/2) + Mo*g*sin(theta)*l = - (Ir+Mr*(l/2)^2 + Io + ...

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###### Education
• BEng, Allahabad University, India
• MSc , Pune University, India
• PhD (IP), Pune University, India
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