2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54102The dependence of velocity on momentum for the free massive particle obeying the $κ$-Poincaré Poisson symmetry is calculated in terms of intrinsic non-commuting space-time coordinates and shown to have a monotonic character, with upper limit of velocity equal to 1.5 pages, latexHigh Energy Physics - TheoryOn the classical $κ$-particletext