PlanetPhysics/Position

The position of an object is its location. It is usually denoted as $$x$$. When working in more than one dimension, position may be considered as a vector quantity; it can then be denoted as $$\mathbf{x}$$.

Position is frequently considered as a function of time. In the one-dimensional case, the notations $$x(t)$$ and (more rarely) $$s(t)$$ are used. On the other hand, when working in more than one dimension, the notation $$\mathbf{x}(t)$$ is used.

The SI unit of position is $$\mathrm{m}$$ (meters).