2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/106451The aim of this paper is to derive Fokker - Planck equation in curvilinear coordinates using physical argumentation. We get the same result, as in our previous article [1], but for broader class of arbitrary holonomic mechanical systems.The second part of the article arXiv:nlin.CD/0506053, 7 pagesChaotic DynamicsFokker - Planck equation in curvilinear coordinates. Part 2text