Rigid Body Rotation With Translation Physics

3. Rigid body rotation with translation Physics.

A hidden physics, you will not find a simple example of this physics, Other than a wheel rolling without slipping.
The difference for a mass or point on just a rotation, and a rotation moving is dramatic.
No point or mass on rotation that is moving is ever at a constant velocity, other than the center.

To come:
4. Relative motion and inertial reference frames.
A not seen before look at this physics, it challenges relative motion.

Vector addition tool.
https://ophysics.com/k2.html