A video tutorial which demonstrates how average velocity can be shown using a positive or negative sign. [4:17]

Figuring out Usain Bolt's average speed over 100m when he broke the world record in 2009.

This lesson will explain what speed is, including the difference between average speed and instantaneous speed, showing how to calculate both. It will also show the common units used to represent speed. It is 1 of 2 in the series titled...

In this lesson, students will learn Finding Average Speed

A video exploring speed. Understand the difference between instantaneous and average speed. Also see examples of how to calculate average speed. [1:43]