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Homework Help: Falling physical pendulum

  1. Mar 31, 2010 #1
    1. The problem statement, all variables and given/known data

    A stick of mass M, length L is standing upright on a table, pivoted at the bottom.
    What is its angular velocity as it hits the table?



    2. Relevant equations

    ang. accel = (3g/2L)cos theta (theta is zero with stick laying on table)



    3. The attempt at a solution

    ang. vel = integral of ang. accel wrt to time, theta is some function of time.
    Elliptic integral???

    Numeric solution??

    Thanks.
     
  2. jcsd
  3. Apr 1, 2010 #2

    ehild

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    Homework Helper

    Use conservation of energy.

    ehild
     
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