# An object travels North at #15 m/s# for #3 s# and then travels South at #12 m/s# for #7 s#. What are the object's average speed and velocity?

##### 1 Answer

Jun 29, 2017

#### Answer:

The average speed is

The average velocity is

#### Explanation:

The total distance travelled is

The total time is

The average speed is

The displacement is

The average velocity is