Angular Frequency of Uniform Disk | Calculation & Solution

[Momentum09]

Homework Statement

A uniform disk of radius 1.4m and mass 2.6kg is suspended from a pivot 0.35m above its center of mass. Find the angular frequency w for small oscillations.

Homework Equations

w = 2 x pi x f = sqrt (k/m)

The Attempt at a Solution

Is this the equation I would use to solve this problem? Or does moment of inertia have to be considered also?

 

[Doc Al]

This is a physical pendulum. (Look it up!) You'll need to compute the rotational inertia about the pivot point.

 

[Meir Achuz]

Use the parallel axis theorem to find the moment of inertia of the disk about the pivot point.