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Video Discussion: Using Newton's Second Law to find the Force of Friction

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Name: Using Newton's Second Law to find the Force of Friction

Category: Dynamics

Date Added: 12 January 2015 - 11:59 AM

Submitter: Flipping Physics

Short Description: None Provided

In order to use Newton’s Second Law, you need to correctly draw the Free Body Diagram. This problem explains a common mistake students make involving the force applied. We also review how to find acceleration on a velocity as a function of time graph.

Content Times:

0:22 The problem

0:54 Listing our known values

1:51 Drawing the Free Body Diagram

2:17 A common mistake in our Free Body Diagram

3:32 Solving the problem

4:14 Another common mistake

5:07 Why is the acceleration positive?

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