Trajectory velocity:

The trajectory velocity of a body is the distance per period of time to cover this distance.

In case of a circular motion, the covered distance of one turn equals exactly the circumference of the circle.

s	Covered distance
π	Circle constant (approximately 3,14)
r	Distance from the centre

Thus the trajectory velocity v equals:

s	covered distance
π	Circle constant (approximately: 3,14 )
r	Distance from the centre
t	Period of time

As you can see in the formula above, the trajectory velocity depends on the distance from the rotation axis.