Angular velocity, w, is
the rate of change of the angular position of an extended object.
This tells one how fast the object is rotating in rad/s. If the rotation
is in the x-y plane, the direction of w
is perpendicular to the x-y plane, w
will only have a z component. The direction of w
is
given by the Right Hand Rule, which results in the z component of angular
velocity, w_z, being negative for CW rotations
and positive for CCW rotations. 40
The symbol for w can be typed in the equation
pane using "ALT+w".
The expession for average value of the z component angular velocity,
w01_z,
between time T0 and T1 is given by
w01_z
= q01_z/t01
where q01_z is the angular
displacement from T0 to T1 and t01 is the time interval from T0 to T1.