# Angular Velocity (Omega)

• Nov 5th 2007, 10:51 AM
Simplicity
Angular Velocity (Omega)
Can someone please explain the difference in Angular Velocity for a Horizontal and a Vertical circle?

:confused:
• Nov 5th 2007, 03:21 PM
hummeth
I don't know what you mean by a horizontal or vertical circle, but i do know that angular velocity is expressed in $\displaystyle \frac{\theta}{t}$ or radians or degrees over time.
• Nov 6th 2007, 03:49 AM
topsquark
Quote:

Originally Posted by Air
Can someone please explain the difference in Angular Velocity for a Horizontal and a Vertical circle?

:confused:

The only thing I can think of is if, for example, you are swinging a mass on the end of a string. In the horizontal circle the angular velocity will remain constant because the tension is constant. In a vertical circle, the tension is not constant (check out the tension at the top and bottom of the motion and you will see that the tensions are different.) So in the vertical circle the angular velocity is not constant.

-Dan