How to derive kinetic energy from the Lagrange equations?
112209
Landau's argument for dependence of Lagrangian on magnitude of velocity
64727
Total time derivatives and partial coordinate derivatives in classical mechanics
64247
Noether Theorem and Energy conservation in classical mechanics
15565
How can one derive the Hamiltonian-function out of a differential equation of second order that describes the motion of a pendulum?
105572
Independent Variables of a Lagrangian
51294
Derivation of Euler's equations for rigid body rotation
4989
Why are there only derivatives to the first order in the Lagrangian?
98358
A variational problem with a lagrangian , what is the lagrangian?
82166
How are constraint forces represented in Lagrangian mechanics?
29928
Is kinetic energy a relative quantity? Will it make inconsistent equations when applying it to the conservation of energy equations?
126390
Covariance of Euler-Lagrange equations under change of generalized coordinates
76125
Kinematics with non constant acceleration
28935
Lagrangian of the Euler equations
103009
$E=mc^2$ resembles non-relativistic kinetic energy formula $E_K = \frac{1}{2}mv^2$?
27296
Derivation of Lagrangian of electromagnetic field from Lorentz force
24150
Newton's third law does not apply to the kinetic energy formula?
22934
Validity of work-energy theorem in presence of non-conservative forces?