If I apply a force on an object at rest and it’s velocity is constant (after force is applied) wouldn’t that mean that the acceleration is 0? Then how would $F=Ma$ make sense? My thinking here is that change in position means change in velocity but that doesn’t necessarily mean that there is a ch...

I am looking for a numerical simulation program which computes the trajectory of a charged particle moving in an electric field. The electric field should be numerically determined by determining a geometry of charged conductors with defined electric potentials. In particular the following simple...

The velocity is the variation rate of the position correct? So does it make sense to talk about velocity without time?