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

AI Thread Summary
To calculate the period of the Pirate ship modeled as a pendulum, the length (L) is determined to be 12 meters, with the mass concentrated at the center of the boat. The maximum angle of displacement is suggested to be 135 degrees, although this is considered high. The discussion references using the sine laws and trigonometric principles to assist in the calculations. A diagram was created to visualize the problem, but the original poster expresses uncertainty about the values used. Clarification and assistance in confirming these parameters are requested for accurate calculations.
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Homework Statement



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

Homework Equations



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

Soh Cah Toa as well for 90 degrees triangles.

The Attempt at a Solution



http://img517.imageshack.us/img517/3668/scanrj4.jpg

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.
 
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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.
 
maximum angle of displacement 135 degrees? Seems a bit high.
 
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