Khan Academy: Calculating Average Velocity or Speed

Although speed and velocity are often words used interchangeably, in physics, they are distinct concepts. Watch as Sal Khan solves a word problem while explaining this distinction. [11:45]

Video lecture provides an example of calculating speed and velocity. [11:46]

How to calculate average velocity and speed in one-dimension in word problems.

In the following interactive module, students will begin to explain the relationships between instantaneous velocity, average velocity, instantaneous speed, average speed, displacement, and time. They will calculate velocity and speed...

Practice calculating average velocity and speed from word problems when an object changes directions.

Practice calculating average velocity and speed from word problems when an object moves in one direction.

Solve problems where you must find the average velocity or speed by analyzing graphs. Hints and helpful videos are available when needed.

Sal solves a word problem to find average velocity and speed of an object in one-dimension. [4:51]

A video exploring how to calculate the equal speed at which both A and B could be traveling away from a 'neutral' observer. [6:44]

By the end of this section, you will be able to do the following: Explain the relationships between instantaneous velocity, average velocity, instantaneous speed, average speed, displacement, and time; Calculate velocity and speed given...