Carroll's derivation of the geodesic equations
67357
Geodesics equations via variational principle
155492
Exercise on local and global symmetry for a given Lagrangian density
107478
Equation of motion of a free particle
93635
Euclidean geometry in non-inertial frame
127920
Equivalent Rotation using Baker-Campbell-Hausdorff relation
100315
What is the null geodesic equation?
27652
metric on the Euclidean Group
22873
Integrating radial free fall in Newtonian gravity
10785
Form of the Classical EM Lagrangian
68906
Do the same equations of motion imply the same Lagrangians?
130278
Vector Applications in Euclidean Geometry
30723
Second derivative "formula derivation"
85094
A problem from Evans' PDEs book: find a Lagrangian for a given Euler-Lagrange equation
20440
The reference frame of $c$
101202
Infinite Geometric Series Formula Derivation
112216
Geometric description of canonical commutation relation
17858
What is the physical meaning of the affine parameter for null geodesic?