The period of a pendulum

  • Thread starter Safinaz
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  • #1
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Homework Statement




the period of a physical pendulum is ## 2\pi \sqrt{I/mgh}, ## where I is the moment of
inertia about the pivot point and d is the distance from the pivot to the
centre of mass. A circular hoop hangs from nail on a barn wall. The
mass of the hoop is 3 kilogram and its radius is 20 centimetre . If it
is displaced slightly by a passing breeze, what is the period of the
resulting oscillation.



Homework Equations




What is the solution ?


The Attempt at a Solution



I thank about as a motion of torsion pendulum, whose ## T= 2 \pi \sqrt{I/c} ##, with ## I = MR^2 ##, and c is the twisting coupling.
 

Answers and Replies

  • #2
gneill
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Look up "Physical Pendulum". The hyperphysics web site gives a good summary.
 

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