Can we go from equations of motion back to Lagrangian?
44282
How do I show that there exists variational/action principle for a given classical system?
87259
Constraints of relativistic point particle in Hamiltonian mechanics
116417
Method of Steepest Descent and Lagrange
10953
Elementary argument for conservation laws from symmetries *without* using the Lagrangian formalism
23027
Deriving equations of motion using integration
81967
Second law of Newton for variable mass systems
64727
Total time derivatives and partial coordinate derivatives in classical mechanics
79922
Orientation reversing diffeomorphism
152997
Is there a kind of Noether's theorem for the Hamiltonian formalism?
55700
Is it possible to recover Classical Mechanics from Schrödinger's equation?
60889
What exactly are Hamiltonian Mechanics (and Lagrangian mechanics)
48068
Any good resources for Lagrangian and Hamiltonian Dynamics?
76125
Kinematics with non constant acceleration
12175
Applying the principle of equivalence to an accelerated frame
99789
Beyond Hamiltonian and Lagrangian mechanics
126142
Action principle, Lagrangian mechanics, Hamiltonian mechanics, and conservation laws when assuming Aristotelian mechanics $F=mv$
72721
Do an action and its Euler-Lagrange equations have the same symmetries?