Question

If you shoot a bullet, which are the rules related to it?

Answer 1

what do you mean by 'rules'?

Answer 2

There's the conservation of momentum, gravity on the bullet are the 2 laws which will have the most impact.

Answer 3

Ah, ok. Our lecturer said something about the "rules of a straight-throw" (translated from german... not sure if you know what I mean...). Now I'am thinking about I can't find this, instead in combination with X=x0 + vxt... and so why do we have it separated in this case?