## What is “average speed”?

Toward bright spark; The ratio of the distance traveled to the spent time:

$S_{avg}=\frac{d&space;}{\Delta&space;t}$

For example, if the average speed of a moving body is 40 km/h, the distance traveled in each hour is equal to 40 km.

Point: Average speed and velocity are the same when the body keeps moving along a straight line without any change in its direction.

Now that you are familiar with the concepts of average speed, you can install “Toward bright spark” app, review them as a video tutorial and learn their key points.