Lecture
This lecture introduces Lagrange's method, which elegantly handles constraints in mechanics by formulating them intrinsically. The instructor explains the concept using examples such as coupled pendulums and a rigid bar with a sliding ring. The lecture covers the derivation of Lagrange's equations, the calculation of kinetic and potential energies, and the application of the method to systems with generalized coordinates. The instructor demonstrates how to derive the Lagrangian and solve for the equations of motion, emphasizing the importance of correctly applying the method to obtain accurate results.