# completeness of Newton's axioms

20 May 2020Are Newtonâ€™s axioms complete for describing all phenomena in classical mechanics? Is there a reason why the inerial law (\(\dot{x}^i = \mathrm{const}\) for \(F^i = 0\)) is required separately from the dynamical law (\(F^i = m\ddot{x}^i\))?