I think you are wrong on this. The math IS the concept, in the best language that we have developed for understanding and communicating such concepts. Any natural language description is merely a rough translation.I think (may be wrongly) that math comes later than concepts. I am after the concept here....
A force is a change in momentum. What does the equation tell you about momentum and mass? Are they the same thing?I think I surely would have to apply force just as now I apply force to stop a ball.
1. Isn't this mass?
It can't be brought to rest, as has been explained multiple times already.2. When I stop a ball it doesn't stop existing ( i.e. lose its mass). Why would a photon become massless if I bring it to rest?