Newton's Laws Applied: Normal force, elevators, statics, and the Atwood Machine

Documents available: email Billy AT PhysicsSolutions DOT com PHY 241 D01C Ch4Fin 091621 In this video I: introduce the normal force and show that it is not always the weight of the object; I show fuzzy dice being used to measure acceleration (and I teach a method to solve systems of equations); I solve a statics problem, and I work solve the Atwood Machine. LOOK OUT FOR AN ERROR I MAKE (IT IS IN THE DOCUMENT TO ACCOMPANY THIS VIDEO)BUT I WILL TELL YOU IT COMES SHORTLY AFTER I BEGIN SOLVING THE SYSTEM OF EQUATIONS. Still, I think the video is very helpful for many reasons; hence, I posted it here despite the error.