What is the Frequency of Oscillation for a Gibbon Hanging on a Tree Branch?

[gillammd]

A gibbon, hanging onto a horizontal tree branch with one arm, swings with a small amplitude. The gibbon's center of mass is 0.481 m from the branch and its rotational inertia divided by its mass is I/m = 0.256 m2. Estimate the frequency of oscillation.

 

[jncarter]

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