who could help me to get the real velocity?
maybe, you may wander of me.
in the FP 3.0, There are some methods to get velocity.
But it is not real.
The reason is like that:
For example, the flying body is pulled by 3 forces.
First is vertical one.
Second is horizontal one.
Thrid is gravity.
That's why the velocity in the FP 3.0 means the total forces on the moving body.
Also the no moving body has its own velocity.
it is crappy.
I need to get real velocity on moving body.
How can I do?