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Homework Help: Pivoting Stick

  1. Nov 30, 2004 #1
    A stick of uniform density with mass M = 7.6 kg and length L = 0.8 m is pivoted about an axle which is perpendicular to its length and located 0.13 m from one end. Ignore any friction between the stick and the axle.


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    a) What is the moment of inertia of the stick about this axle?
    Iaxle = kg m2
    1.621333 NO

    HELP: Use the parallel-axis theorem.

    i.e Icom + Mh2, how to apply that here.

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    The stick is held horizontal and then released.
    b) What is its angular speed as it passes through the vertical

    w = rad/s


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    c) What is its angular acceleration as it passes through the vertical position?
    a = rad/s2


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    d) What is the magnitude of the vertical component of the force exerted by the stick on the axle when the stick passes through the vertical?
    |Fvertical| = N


    Somebody help me with all these parts!!!
     
  2. jcsd
  3. Dec 1, 2004 #2
    did you figure out part d yet i am working on the same problem
     
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