Pure Rotation
Pure rotation velocity and acceleration equations
Equations have been derived expressing a point's velocity and acceleration in terms of the n-t coordinate system.
![](nt_velocity.gif)
![](acceleration_2.gif)
![](pr_fig1.png)
The following equations may also be used to calculate a point's velocity and acceleration. Their advantage is that they may be used in any coordinate system.
![](cross_velocity.gif)
![](cross_acceleration.gif)