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Homework Help: Calculate the period of the Pirate ship if it were a pendulum

  1. May 15, 2007 #1
    1. The problem statement, all variables and given/known data

    Calculate the period of the Pirate ship if it were a pendulum.

    2. Relevant equations

    Sine laws: SinA/a = SinB/b = SinC/c

    Soh Cah Toa as well for 90 degrees triangles.

    3. The attempt at a solution

    http://img517.imageshack.us/img517/3668/scanrj4.jpg [Broken]

    I've tried it on there. I made a diagram but I'm lost. I need to find L and then t. I think it's 12, the radius. I'm not 100% sure though. Any help is greatly appreciated.
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. May 15, 2007 #2


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    Homework Helper

    Yes, the length is suppose to be 12 meters. The mass should be concentrated to a point at the middle of the boat, which would then make the pendulum's length 12 meters.
  4. May 15, 2007 #3
    maximum angle of displacement 135 degrees? Seems a bit high.
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