Is action principle trivial?
44282
How do I show that there exists variational/action principle for a given classical system?
18054
Is there a proof from the first principle that the Lagrangian L = T - V?
79223
Doesn't symmetry and transitivity imply reflexitivity?
44650
Several stationary points of the action functional
27016
Is the Lagrangian density a functional or a function?
17414
Lagrangian of an effective potential
34520
Is $0\,\mathrm{m}$ dimensionless?
142081
Can something without mass exert a force?
103270
Force acting on a simple rigid body in space
133664
When the automorphism group is trivial......
74367
Newtonian mechanics: massless particles
39208
What identifies an action-reaction pair of forces?
101527
Why is it that a force is not required for a body to move at constant velocity?
17588
Can Lagrangian be thought of as a metric?
21125
Why does Bernoulli's principle work?
9705
Sensitivity to initial conditions and topological transitivity
143803
The elusive difference between force and impulse