2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/123636In this paper we shall define and study the angular momentum-energy space for the classical problem of plane-motions of a particle situated in a potential field of a central force. We shall present the angular momentum-energy space for some important cases.9 pagesMathematical Physics37N05; 70K25; 70K42text