timestamps

• 0:00

  Introduction to Friction

• 0:32

  Lesson Overview and Schedule

• 1:03

  Defining Friction

• 1:36

  Friction Clues and Types

• 2:06

  Static vs Kinetic Friction

• 3:07

  Friction Graph Explanation

• 4:10

  Factors Affecting Friction

• 5:12

  Coefficient of Friction

• 6:43

  Normal Force Role

• 7:15

  Friction Equation Derivation

• 9:18

  Static and Kinetic Recap

• 10:20

  Friction Direction and Summary

• 10:52

  Ramp Free Body Diagram

• 12:29

  Trig Components on Ramp

• 14:03

  Deriving Mu on Ramp

• 15:36

  Mu Equals Tan Theta

• 16:37

  Preparing for Practice Problems

• 18:42

  Custom Question: Time to Stop

• 20:44

  Free Body and Acceleration

• 22:50

  Calculating Deceleration

• 24:54

  Distance Calculation

• 28:05

  Sled and Dog Problem

• 29:08

  Sled Free Body Diagram

• 30:12

  Normal Force Calculation

• 32:19

  System Acceleration

• 34:24

  Velocity vs Time Graph

• 37:33

  Ramp Boxes with String

• 38:37

  Forces on Block M1

• 40:10

  Coefficient of Kinetic Friction

• 41:47

  Suspended Mass Calculation

• 45:27

  Acceleration After Cutting String

• 47:33

  Atwood System with Friction

• 48:36

  M1 Free Body Diagram

• 49:41

  Minimum Static Coefficient

• 51:47

  System Acceleration Derivation

• 54:24

  Tension in String

• 57:30

  Lesson Wrap-Up and Questions

• 58:31

  Final Thoughts