In physics, the **angular velocity** is defined as the rate of change of angular displacement and is a vector quantity (more precisely, a pseudovector) which specifies the angular speed (rotational speed) of an object and the axis about which the object is rotating. The SI unit of angular velocity is radians per second, although it may be measured in other units such as degrees per second, degrees per hour, etc. Angular velocity is usually represented by the symbol omega (**ω**, rarely **Ω**).

The direction of the angular velocity vector is perpendicular to the plane of rotation, in a direction which is usually specified by the right-hand rule.

Read more about Angular Velocity: Rotating Frames, Rigid Body Considerations

### Other articles related to "angular velocity, angular, velocity":

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... details of a spinning body may impose restrictions on the motion of its

... details of a spinning body may impose restrictions on the motion of its

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**angular velocity**is an intrinsic property of the spinning rigid body ... lab frame is O, while O1 and O2 are two fixed points on the rigid body, whose

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