Angular Frequency for Small Oscillations

[lgmavs41]

[SOLVED] help with homework problem

Homework Statement

A uniform disk of radius 4.4 m and mass 9 kg is suspended from a pivot 1.364 m above its center of mass. The acceleration of gravity is 9.8 m/s^2. Find the angular frequency w for small oscillations.

The Attempt at a Solution

I'm just wondering what does this question mean by finding the angular frequency for "small oscillations." Any help will be appreciated. Thanks!

 

[Doc Al]

physical pendulum

If pushed slightly to one side, the disk would oscillate like a pendulum.

 

[lgmavs41]

never mind. i figured it out. my professor didn't cover it yet but I looked it up. w=square root of mgd/I