http://img100.imageshack.us/img100/1756/untitled2qx1.jpg [Broken](adsbygoogle = window.adsbygoogle || []).push({});

I am having trouble with #21. I already did #20, but I have NO idea of how to do #21. First of all, I am not really sure where is the axis suppose to be.

**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: Moment of Intertia

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