( ( ( The change ) ( in ( the momentum ) ) ) ( ( is ( given ( by ( the impulse ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN change)) (PP (IN in) (NP (DT the) (NN momentum)))) (VP (VBZ is) (VP (VBN given) (PP (IN by) (NP (DT the) (NN impulse))))) (. .)))
The change in the momentum is given by the impulse .
(ROOT (S (NP (NP (NNP Change)) (PP (IN in) (NP (NP (NN momentum)) (PP (IN in) (NP (DT an) (NN object)))))) (VP (VBZ is) (ADJP (JJ equivalent) (PP (TO to) (NP (NN impulse))))) (. .)))