269K views · 6.3K reactions | Angular Momentum and Torque Professor Walter Lewin❤ Physics I Classical Mechanics #physics #walterlewin #classicalmechanics | The Physicist | Facebook

MathxMatrix on Instagram: "The Euler–Lagrange equation is a cornerstone of classical mechanics and the calculus of variations. It tells us how to find the path or trajectory that a system will naturally follow—based on minimizing or extremizing a quantity called the action. This equation essentially replaces Newton’s laws in a more elegant, generalized form. Instead of forces, it uses energy principles to derive motion. Original creation by #Physwithelliot on Yt. #eulerlagrange #euler #quantum #