IEVref: 113-03-13 ID: Language: en Status: Standard Term: momentum Synonym1: Synonym2: Synonym3: Symbol: p Definition: vector quantity equal to the product of the mass m of a body and the velocity v of its centre of mass, thus p = mvNOTE 1 For a continuous body in a domain D, momentum is equal to the integral $p={\int }_{\text{D}}\rho \text{\hspace{0.17em}}vdV={\int }_{\text{D}}vdm$, where ρ is the mass density in a domain having quasi-infinitesimal volume dV and mass dm, and velocity v. For a system of bodies, it is equal to the sum of their momentums. NOTE 2 If the sum of external forces is equal to zero, momentum of a body follows a law of conservation. NOTE 3 If the theory of relativity is applied, m is relativistic mass. NOTE 4 The coherent SI unit of momentum is kilogram metre per second, kg·m·s−1. Publication date: 2011-04 Source: Replaces: Internal notes: 2014-07-07: Symbol p corrected to p. JGO 2017-06-02: Cleanup - Remove Attached Image 113-03-13en.gif CO remarks: TC/SC remarks: VT remarks: Domain1: Domain2: Domain3: Domain4: Domain5: