The Ladder Problem. What is the min coefficient of friction to prevent ladder from slipping?

Physics Explained Chapter 9: Torque and Equilibrium In this video: A ladder leans up against a frictionless wall. A person moves part way up the ladder. What is the minimum coefficient of friction to prevent the ladder from slipping? Also - PART II: Here I make a python program to graph the min coefficient of friction as a function of lean angle    • The Ladder Problem Part II: What happens a...   Related videos: What is torque?    • What is Torque?   Objects in equilibrium    • Torque and Equilibrium: forces on a diving...   Friction:    • Introduction to static and kinetic frictio...   Link to code: https://trinket.io/glowscript/45c70bc78b