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The period of a pendulum

  1. Dec 6, 2015 #1
    1. The problem statement, all variables and given/known data


    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.



    2. Relevant equations


    What is the solution ?


    3. 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.
     
  2. jcsd
  3. Dec 6, 2015 #2

    gneill

    User Avatar

    Staff: Mentor

    Look up "Physical Pendulum". The hyperphysics web site gives a good summary.
     
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