What Is a Normal Force? | Physics - Forces & Newton's Laws

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In this video we're going to learn all about normal forces. What is a normal force and what does the word "normal" actually mean? We'll learn how a normal force can change due to the other forces acting on an object. We'll also cover how to draw a normal force in a free body diagram. At the end, we'll walk through 3 example problems that involve normal forces.

0:00 Intro
0:36 What is a normal force?
3:10 What does "normal" mean?
4:04 A normal force changes based on other forces
5:28 How to draw a normal force in a FBD
7:41 Example 1: book on a table
10:13 Example 2: book on a table with another force
12:13 Example 3: two blocks accelerating

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