# An object travels North at #9 m/s# for #7 s# and then travels South at #7 m/s# for # 6 s#. What are the object's average speed and velocity?

##### 1 Answer

Feb 12, 2017

**The average speed is the total distance over the total time.**

The total distance i s

The total time is

Thus, the average speed is

**The average velocity is the total displacement over the total time.**

If the object goes

The total time is the same

Thus, the average velocity is

*Don't forget to add the direction "North" because velocity is a vector quantity.*