# An object travels North at #8 m/s# for #7 s# and then travels South at #3 m/s# for #4 s#. What are the object's average speed and velocity?

##### 1 Answer

Apr 30, 2016

speed

#### Explanation:

Distance traveled due North in 7s @

Distance traveled due South in 4s @

Total Distance traveled

Total time taken =

So average speed

Now net displacement due North=

Hence Average velocity due North