# An object travels North at #6 m/s# for #2 s# and then travels South at #6 m/s# for #7 s#. What are the object's average speed and velocity?

##### 1 Answer

May 25, 2018

Refer to the explanation.

#### Explanation:

Average speed is defined through the equation:

where:

#bars# is the average speed

#d# is the total distance covered

#t# is the time taken

So, we get:

Velocity is given by the equation:

where:

#barv# is the average velocity

#vecd# is the distance covered in aspecific direction

#t# is the time taken

Here, I'll let the standard direction to be north. So, the south direction will be represented as negative.

So, we get:

Therefore, the average velocity is **south**.