Find Symmetry for Lagrangian in 3D Cylindrical Coordinates

[noor]

the question is that there is a particle in 3 spatial Euclidean dimensions in cylindrical coordinates.
I want to find a symmetry for the lagrangian if the potential energy is function of r and k.theta+z
V=V(r,k.theta+z)
any help please ?

 

[jedishrfu]

Welcome to PF!

This looks like a homework problem. PF has a template for homework problems where you state the problem, show us relevant formulas needed to solve it and then your attempt to solve it. We can't help you if you don't show any work first.

In your problem what is k? Is it some constant?

 

[noor]

ok thanks I am new here