( ( ( ( Newton 's ) ( second law ) ) ( of motion ) ) ( ( states ( that ( ( force ( -LRB- ( F -RRB- ) ) ) ( is ( ( ( equal ( to ( mass ( ( -LRB- ( m -RRB- ) ) times ) ) ) ) acceleration ) ( -LRB- ( a -RRB- ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (NNP Newton) (POS 's)) (JJ second) (NN law)) (PP (IN of) (NP (NN motion)))) (VP (VBZ states) (SBAR (IN that) (S (NP (NP (NN force)) (PRN (-LRB- -LRB-) (NP (NNP F)) (-RRB- -RRB-))) (VP (VBZ is) (NP (NP (ADJP (JJ equal) (PP (TO to) (NP (JJ mass) (PRN (-LRB- -LRB-) (NP (NN m)) (-RRB- -RRB-)) (NNS times)))) (NN acceleration)) (PRN (-LRB- -LRB-) (X (SYM a)) (-RRB- -RRB-))))))) (. .)))
Newton's second law of motion states that force (F) is equal to mass (m) times acceleration (a).
(ROOT (S (S (NP (NP (NP (NNP Newton) (POS 's)) (JJ second) (NN law)) (PP (IN of) (NP (NN motion)))) (VP (VBZ is) (NP (QP (JJR more) (IN than) (DT a)) (NN definition)))) (: ;) (S (NP (PRP it)) (VP (VBZ is) (NP (NP (DT a) (NN relationship)) (PP (IN among) (NP (NP (NN acceleration)) (, ,) (NP (NN force)) (, ,) (CC and) (NP (NN mass))))))) (. .)))
Newton’s second law of motion is more than a definition; it is a relationship among acceleration, force, and mass.