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How do you calculate the period of a physical pendulum?

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How do you calculate the period of a physical pendulum?

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Hint:

Calculate moment of inertia.The mass is known.'g' is of course known.

where I is the moment of inertia; in this case I = mr^2/2. When θ is small,
and therefore the expression becomes

Calculate moment of inertia.The mass is known.'g' is of course known.

where I is the moment of inertia; in this case I = mr^2/2. When θ is small,

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