# An object travels North at #4 m/s# for #5 s# and then travels South at #9 m/s# for # 2 s#. What are the object's average speed and velocity?

##### 2 Answers

Jan 14, 2018

Average speed =

Average velocity =

#### Explanation:

We know that average speed = total distance covered/total time taken.

So,total distance covered in this case in 7 seconds is

Now,avergae velocity = total displacement/total time taken

Here,the object has gone

Hence average velocity is

Jan 14, 2018

velocity=

speed=

#### Explanation: