Recent content by roger larouche

Well ~ to say for sure, friction in the real world is always a positive force ; if it wasn't so! we could not be moving when walking .

A force cannot be created nor calculated at it's value ; if it's ''opponent'' ( plastic ) do not offer any resistance

The definition of a force do not have any value without resistance in it's path or in it's surrounding ~~ and ''Energy has the same definition''

I can't think of any force , no matter it's origin or it's composition ; would not have any effect on matter in it's path or in it's surrounding.