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Angular velocity

In physics, the angular velocity of a body is the rate of change of its angular displacement with respect to time, and in three-dimensional space is a pseudovector quantity that specifies the rotational speed of an object and the orientation of the rotating. The SI unit of angular velocity is radians per second. Angular velocity is usually represented by the symbol omega (ω, rarely Ω).

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Nothing quite like a good, old Kahn Academy video to help people understand angular velocity!

Contributed by Sarah Potter

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