Khan Academy: Average Velocity and Speed With Direction Changes: Word Problems

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

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

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

Practice finding average velocity or average speed from a position vs. time graph.

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...

Review the key terms and skills related to analyzing motion graphs, such as finding velocity from position vs. time graphs and displacement from velocity vs. time graphs.

A video discussing uniform circular motion, Learn how in uniform circular motion, angular velocity is a vector quantity and is equal to the angular displacement divided by the change in time. [7:30]

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...

Video provides examples of how to calculate speed and velocity. [11:45]

How fast does the space station need to travel in order to stay in orbit to maintain its circular motion around Earth? This video will show how to calculate that speed. [6:35]