Origin of Hamilton's variational principle
18054
Is there a proof from the first principle that the Lagrangian L = T - V?
64835
Intuitive interpretation of the Laplacian
97765
Force as gradient of scalar potential energy
61684
Why is the d'Alembert's Principle formulated in terms of virtual displacements rather than real displacements in time?
67357
Geodesics equations via variational principle
126390
Covariance of Euler-Lagrange equations under change of generalized coordinates
66919
When/why does the principle of least action plus boundary conditions not uniquely specify a path?
68813
Geodesic Equation from variation: Is the squared lagrangian equivalent?
82166
How are constraint forces represented in Lagrangian mechanics?
91314
Advantages of Lagrangian Mechanics over Newtonian Mechanics
126991
Prerequisites for classical mechanics by Susskind
10785
Form of the Classical EM Lagrangian
86504
Hamilton's principle with semiholonomic constraints in Goldstein
63069
Why the Principle of Least Action?
11358
Eigenvalues of the Lagrangian?
48068
Any good resources for Lagrangian and Hamiltonian Dynamics?
151173
Is the quantum action principle of Schwinger a variational principle?