Without friction, we couldn't walk, drive, or even hold a pen. In this lecture, Prof. Walter Lewin dives into the complex world of static and kinetic friction. We learn how to calculate friction coefficients and why, surprisingly, the surface area of contact doesn't change the friction force.
#physics #friction #classicalmechanics #walterlewin #newtonianphysics #science #engineering #TheFormalSyllabus