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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 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 + ...

    Solution Summary

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