"backward momentum" . "Momentum" . "law of conservation of momentum" . . . "Momentum#Four-vector formulation" . "non-relativistic momentum" . . . "lifting" . "relativistic momentum" . . . "general momentum conservation equation" . . . "momentum#Newtonian" . "equilibrium" . . "[momentum]" . . . "conservation of linear momentum" . "/momentum" . . . . "Momentum Transport" . . . . "multiple dimensions" . . . . . "Momentum" . "momentum conservation" . . . . "Momentum#Relativistic" . . . "conserved" . . . . "momentum#Particle in field" . . . "balance of the momentum" . . . . "speed" . . "Equation of motion" . "equilibrium equations" . "Linear momentum" . . "mechanical momentum" . . "classical Hamiltonian of a charged particle" . . "energy" . . "conservation-of-momentum" . "momentum" . . . "Momentum#Conservation" . "the conservation of momentum" . . "Conservation of momentum" . . "mathematics of elastic collisions" . . . "momenta" . "''kinetic'' momentum" . . . . . "momentum transport" . . "lifting leading" . . "generalized momentum conservation principle" . "quantum-mechanical momentum" . . . "linear momentum" . "must be preserved" . . "linear" . . . "momentum balance" . "conservation of momentum" .