Applet shows the path of a particle in circular motion in the xy plane and could in addition be made to move along the x - axis or z - axis or both.
The direction of observation can be changed by draging the mouse in the applet area. Double clicking anywhere in the applet area moves the origin to that point.
Do observe the motion in the xy plane ( with z velocity set to zero ) with linear velocity and angular velocity satifying the realtion v = rw. (That should read velocity equals radius times angular veloctiy)