It is shown that the statement about the equations of motion for a charged massive particle would be a cohsequence of the field equations in the Kaluza unified theory of gravitation and eleetromagnetism, i.e. the equations of motion for the particle could be deduced from the Kaluza field equations, just as in Einstein's theory of general relativity, the equations of motion for a massive particle would be a consequence of the Einstein equations. Furthermore, the Lorentz equations for a particle moving in the Maxwell electromagnetic field in Minkowskian space-time could also be obtained from the Maxwell equations by using the Kaluza formalism of Maxwell theory.