( ( ( MOMENTUM 13 ) ( ( ( An ( object 's ) ) momentum ) ( is ( its mass ) ) ) ) ( ( multiplied ( by ( its velocity ) ) ) . ) )
(ROOT (S (NP (NP (NNP MOMENTUM) (CD 13)) (SBAR (S (NP (NP (DT An) (NN object) (POS 's)) (NN momentum)) (VP (VBZ is) (NP (PRP$ its) (NN mass)))))) (VP (VBN multiplied) (PP (IN by) (NP (PRP$ its) (NN velocity)))) (. .)))
MOMENTUM 13 An object's momentum is its mass multiplied by its 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-)))))))))))))) (. .)))