# An object travels North at 6 ms^-1 for 2 s and then travels South at 3 ms^-1 for 4 s. What are the object's average speed and velocity?

The total distance traveled, if direction is not important, is $24$ $m$ in $6$ $s$, for an average speed of $4$ $m {s}^{-} 1$.
The total displacement of the object from its starting point, after traveling North $12$ $m$ and South $12$ $m$, is $0$ $m$ in $6$ $s$, for an average velocity of $0$ $m {s}^{-} 1$.
Distance traveled North: $v = \frac{d}{t}$, rearranged, $d = v t = 6 \cdot 2 = 12$ $m$
Distance traveled South: $d = v t = 3 \cdot 4 = 12$ $m$