An object travels North at #6 m/s# for #8 s# and then travels South at #2 m/s# for #5 s#. What are the object's average speed and velocity?
The object travels
Average speed refers to total distance over time, regardless of direction. Since the object covers a total distance of
Average velocity is a bit more complicated because direction matters; average velocity refers to displacement over time. Let's assign positive to be north for this problem. Since the object has a total displacement of