Question

can some one tell me euler lagrang equation for simple pendulum

Answer 1

\[T = \frac{ 1 }{ 2 }m(l \dot \theta)^2\]
\[U = mgh \implies mgl - mgl \cos \theta \implies mgl(1-\cos \theta)\]
\[L = T-U = L( \theta, \dot \theta, t)\]