( ( From ( ( ( Newton 's ) ( first law ) ) ( of motion ) ) ) ( , ( force ( ( ( ( ( ( ( equals mass ) , ) ' ) ( ( ( m ' ) ( -LRB- ( ( in kg ) -RRB- ) ) ) ( multiplied ( by ( ( acceleration , ) ( ` a ) ) ) ) ) ) ' ) ( -LRB- ( ( in ( metres ( per ( second 2 ) ) ) ) -RRB- ) ) ) . ) ) ) )
(ROOT (S (PP (IN From) (NP (NP (NP (NNP Newton) (POS 's)) (JJ first) (NN law)) (PP (IN of) (NP (NN motion))))) (, ,) (NP (NN force)) (VP (VBZ equals) (NP (NN mass)) (, ,) (`` ') (S (NP (NP (NN m) ('' ')) (PRN (-LRB- -LRB-) (PP (IN in) (NP (NN kg))) (-RRB- -RRB-))) (VP (VBN multiplied) (PP (IN by) (NP (NP (NN acceleration)) (, ,) (NP (`` `) (DT a)))))) ('' ') (PRN (-LRB- -LRB-) (PP (IN in) (NP (NP (NNS metres)) (PP (IN per) (NP (JJ second) (CD 2))))) (-RRB- -RRB-))) (. .)))
From Newton's first law of motion, force equals mass, ' m ' (in kg) multiplied by acceleration, 'a' (in metres per second 2 ).
(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.