Velocity, acceleration and forces for point in spinning rigid body

Hi I would like to present my new simulation rotated rigid ball. Brief introduction to the Dzanibek Effect [MEDIA=youtube]r-TnCMZF3fA[/MEDIA] https://www.youtube.com/watch?v=IhnHC-u2gdw

When I learned to simulate the effect and study the secrets of vector relationships with no problem to finde speed vectors for points. https://youtu.be/Orz9Lqsd0cc

Next step is finde acceleration. It is a=(v1-v0)/dt. To spread this vector I set the angle n of inclination of both vectors and line acceleration it is al=cosn*a. Centrifugal acceleration it is ad=a-al. https://youtu.be/GKMdzXG7bRc

Now it is easy to determine the force acting on the point. It is F=am. Now I set the angle m between force vector and main axis. Central force is Fc=cosm*F. Remaining component is forces creating a moment of force. https://youtu.be/kYkPGhN7e00

Yellow- Velocity Red, lighbrown - acceleration and forces Green - line acceleration Light blue - centrifugal acceleration Pink - Central force Orange – forces give moment of force.

My simulation is not perfect and gives errors of the order of 0.01. Sum of moments of forces give result max 0.01 but most likely this is a method error. http://ift.tt/2hZz4Q6