- #1

adjurovich

- 119

- 21

##\vec{v} = \dfrac{d \vec{r}}{dt}##

However, instantaneous velocity is also defined as the first derivative of function of distance with respect to time:

##v = \dfrac{ds}{dt}##

Why do these two different quantities result in the same thing? We can certainly find the distance traveled between two points if we know the displacement function, why?