( ( ( The size ) ( of ( the momentum ) ) ) ( ( is ( equal ( to ( ( the mass ) ( of ( ( the object ) ( multiplied ( by ( ( the size ) ( of ( ( the ( object 's ) ) velocity ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN size)) (PP (IN of) (NP (DT the) (NN momentum)))) (VP (VBZ is) (ADJP (JJ equal) (PP (TO to) (NP (NP (DT the) (NN mass)) (PP (IN of) (NP (NP (DT the) (NN object)) (VP (VBN multiplied) (PP (IN by) (NP (NP (DT the) (NN size)) (PP (IN of) (NP (NP (DT the) (NN object) (POS 's)) (NN velocity)))))))))))) (. .)))
The size of the momentum is equal to the mass of the object multiplied by the size of the object's 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-)))))))))))))) (. .)))