( Momentum ( ( is ( ( the property ) ( of ( mass ( multiplied ( by velocity ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Momentum)) (VP (VBZ is) (NP (NP (DT the) (NN property)) (PP (IN of) (NP (NP (NN mass)) (VP (VBN multiplied) (PP (IN by) (NP (NN velocity)))))))) (. .)))
Momentum is the property of mass multiplied by velocity.
(ROOT (S (NP (NNP Momentum)) (VP (MD can) (VP (VB be) (VP (VBN calculated) (PP (IN by) (S (VP (VBG multiplying) (NP (NP (NP (DT an) (NN object) (POS 's)) (NN mass)) (PP (IN in) (NP (NP (NNS kilograms)) (PRN (-LRB- -LRB-) (NP (NN kg)) (-RRB- -RRB-))))) (PP (IN by) (NP (NP (PRP$ its) (NN velocity)) (PP (IN in) (NP (NP (NNS meters)) (PP (IN per) (NP (NP (JJ second)) (PRN (-LRB- -LRB-) (NP (NN m/s)) (-RRB- -RRB-)))))))))))))) (. .)))