I'm don't really know how to find the momemt of inertia. I have two questions that I'm stuck on.(adsbygoogle = window.adsbygoogle || []).push({});

Two questions:

1. Find the moment of inertia of a sheet f mass M and uniform density which is in the shape of a rectangle of sides a and b, for rotations about an axis passing through its center and perpendicular to the sheet.

answer:Will I start with this I= (integral over A)M/A dA? How would I find the limits of integration and integrate this?

2. Find the moment of inertia of a thin uniform disk of mass M and radius a for rotations about an axis through a diameter of the disk.

answer: Will th answer be I=2M/a^2 (a^4/4)=Ma^2/2?

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

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

# Moment of inertia help me please

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