(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A uniform plank of length 2.00m and mass 30.0 kg is supported by three ropes. Find the tension in each rope when a 700N person is 5m from the left end.

Here's the diagram of the problem:

http://img206.imageshack.us/img206/3752/torquere9.png [Broken]

2. Relevant equations

[tex]\tau[/tex] = rfsin[tex]\vartheta[/tex]

3. The attempt at a solution

I'm not really sure where to start or what to do except I'm pretty sure that

[tex]\sum[/tex][tex]\tau[/tex] = 0

thanks for helping out :)

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# Center of Gravity/Torque problem

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