# Best coordinate system for Projectile motion [closed]

What is the best coordinate system for describing the projectile motion? Rectangular coordinate system or n-t(normal and tangential) coordinate system.

## closed as primarily opinion-based by ACuriousMind♦, John Rennie, Kyle Kanos, Emilio Pisanty, MartinMay 25 '15 at 15:28

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

• Personally i find the latter better. – user74370 May 24 '15 at 5:13
• This seems primarily opinion-based as both descriptions are equivalent. – ACuriousMind May 24 '15 at 12:51

$$\ddot{x}=0$$ $$\ddot{y}=-g$$
• @SohailAhmed I mean that the gravitational field is treated as a constant $g$, as opposed to a gravitational field which might go like $\frac{\hat{r}}{r^2}$. The second case is a lot more complicated. – user12029 May 24 '15 at 16:13