My homework problem goes like this:(adsbygoogle = window.adsbygoogle || []).push({});

A uniform plate of height H = 1.39 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y = 0.25 x2. The plate has a mass of 4.67 kg. Find the moment of inertia of the plate (in kgm2) about the y-axis.

I know I=int(r^2)dm, but I don't know really how to apply it to this problem.

I need some help getting started, or even some info on calculating moments of inertia of random objects. Thank you.

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

Dismiss Notice

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!

# Moment of inertia uniform plate problem

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