Can a "flat function" be a particle trajectory?
7368
Infinite series of derivatives of position when starting from rest
67357
Geodesics equations via variational principle
116314
On-shell and off-shell transformations in Noether's theorem
79727
Direct proof of non-flatness
84684
Force equations for a particle in a non-inertial frame of reference
44282
How do I show that there exists variational/action principle for a given classical system?
91090
Trying to understand the idea behind path independence for line integrals
35694
Can virtual particles be thought of as off-shell Fourier components of a field?
136790
hard self collision: make particles occupy space
93986
Connectivity, Path Connectivity and Differentiability
66193
How to prove that a flat spacetime admits Minkowski coordinates?
124861
The extension of smooth function
103241
A function that is continuous at the origin but not differentiable there
68813
Geodesic Equation from variation: Is the squared lagrangian equivalent?
442
Uniform Circular Motion
153050
Variation of Action with time coordinate variations
76125
Kinematics with non constant acceleration