# An object travels North at # 3 m/s# for #7 s# and then travels South at # 4 m/s# for # 4 s#. What are the object's average speed and velocity?

##### 1 Answer

Apr 23, 2018

Please see the explanation below.

#### Explanation:

The total distance travelled is

The time to cover this distance is

The average speed is

The effective distance travelled is

The average velocity is