I have an object moving 20 pixels per tick. When the object reaches a certain point a sprite is created which will be a "pivot point" to which the moving object will pin itself to. At this point the movement stops and the object starts to rotate instead around this pivot point, until it reaches a certain angle.

Is there any formula to calculate so that the rotation around that pivot will have the object move at the same rate of 20 pixels per tick? For this example let's say the pivot point is 100 pixels to the left of the moving object.

How many degrees per tick would be equal to the object moving at 20 pixels per second around this pivot point?