Physics 1135 (Engineering Physics I)

Lecture 7: Friction

Objectives: In this lecture, students will learn to
  • distinguish between static and kinetic friction
  • relate the magnitude of the frictional force to the magnitude of the normal force
  • apply Newton's 2nd law to problems with friction
Lecture Notes: Videos:

A version with captions is now available for most videos.

Introduction lec07_1.mp4
Static and kinetic friction lec07_2.mp4 with captions
Discussion question lec07_3.mp4 with captions
Example: object on inclined plane lec07_4.mp4 with captions
Demonstration lec07_5.mp4 with captions
Example problem with kinetic friction lec07_6.mp4 with captions
Example problem with coupled objects lec07_7.mp4 with captions


Additional example problem Video.mp4 with captions

Homework assignment: HW #7