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Oscillation problem

  1. Nov 11, 2005 #1
    A wrecking ball is suspended from a crane by a cable that is 30 m long. How much time is required for such a simple pendulum to make one complete oscillation? no picture was given to me

    Ok this is a pendulum problem and its asking for time which is the period.

    So I think that this formula should work since its a simple harmonic motion prob. and asking for Time.

    T= 2pi[L/g]^1/2

    T=2pi[30/9.81m/s]^1/2
    T=9.61s

    Is this correct or did I miss something.
     
  2. jcsd
  3. Nov 12, 2005 #2

    Diane_

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    Homework Helper

    Well, the reasoning and the equation look fine, but I'm getting a different answer. You might check the calculation again.
     
  4. Nov 12, 2005 #3
    yeah I made a calculation error. Now I got 11s as the time. Thanks Diane
     
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