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

##### 1 Answer

Jan 17, 2018

Total distance covered by the object along north is

So,average speed = total distance covered/total time

I.e

And, average velocity= total displacement/total time I.e

negative sign indicates direction i.e along north