Series
3 posts
A faithful English edition of the original study note on vectors, coordinate changes, and polar-coordinate velocity and acceleration, with explicit editorial qualifications.
Deriving the Work-Energy Theorem and potential energy straight from F=ma using the chain rule — turns out it's shockingly simple and kinda blew my mind!!!
Derive the spring approximation near stable equilibrium, then compare undamped, underdamped, critically damped, and overdamped oscillator motion.