Pendulum problem

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How do you calculate the period of a physical pendulum?
 
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  • #2
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Hint:

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

09ff9df9a015ce202120b68beacf4ef6.png


where I is the moment of inertia; in this case I = mr^2/2. When θ is small,
7e4b6e2b1820441a10d43da983b3a35c.png
and therefore the expression becomes

62655f30716072ebd74451508dec4546.png
 
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