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?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Rotational motion problem

**Physics Forums | Science Articles, Homework Help, Discussion**