they seem to work well for me , whats the problem that you have with them.

how do you determine acceleration if you dont use
distance and time , where do you start?
suppose you dont know what the force is , or you dont know what the mass is?

what do you do then?

----------------

could you please put your equation up again , I cant find it.

and Im not playing a fool , Im genuinely concerned with how
you get 8000N from 4000N

forces dont just appear , they must come from somewhere
and I want to find out where your getting the extra
4000N from.










3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.