I figured out the first part of the problem below, but I haven't been able to solve the second part.(adsbygoogle = window.adsbygoogle || []).push({});

http://img148.imageshack.us/img148/2097/untitled13jb.png [Broken]

http://img89.imageshack.us/img89/5061/untitled6ez.png [Broken]

What I have so far:

I solved for angular acceleration with alpha = v / r1 * t. I got 92.2 rad / s^2.

But, I'm not sure how to go about finding the force required of the triceps...any ideas?

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# Rotational motion problem

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