The angular velocity 
is the time derivative of the angular
distance 
with direction 
perpendicular to the plane of angular motion,
 |
Angular Velocity
See also
Angular Acceleration, Angular Distance, Speed, Uniform Circular Motion, VelocityExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Angular Velocity." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/AngularVelocity.html