( ( ( ( Newton 's ) ( Second ( Law ( Newton 's ) ) ) ) ( second law ) ) ( ( states ( that ( ( ( the acceleration ) ( of ( an object ) ) ) ( ( is inversely ) ( ( ( proportional ( to ( its mass ) ) ) and ) ( directly ( proportional ( to ( ( the ( net ( external force ) ) ) ( acting ( upon it ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (NNP Newton) (POS 's)) (NNP Second) (NNP Law) (NNP Newton) (POS 's)) (JJ second) (NN law)) (VP (VBZ states) (SBAR (IN that) (S (NP (NP (DT the) (NN acceleration)) (PP (IN of) (NP (DT an) (NN object)))) (VP (VBZ is) (ADVP (RB inversely)) (ADJP (ADJP (JJ proportional) (PP (TO to) (NP (PRP$ its) (NN mass)))) (CC and) (ADJP (RB directly) (JJ proportional) (PP (TO to) (NP (NP (DT the) (JJ net) (JJ external) (NN force)) (VP (VBG acting) (PP (IN upon) (NP (PRP it)))))))))))) (. .)))
Newton's Second Law Newton's second law states that the acceleration of an object is inversely proportional to its mass and directly proportional to the net external force acting upon it.
(ROOT (S (NP (NNS Experiments)) (VP (VBP have) (VP (VBN shown) (SBAR (IN that) (S (NP (NN acceleration)) (VP (VBZ is) (ADVP (RB exactly)) (ADVP (RB inversely) (NP (CD proportional)) (PP (TO to) (NP (NN mass)))) (, ,) (SBAR (RB just) (IN as) (S (NP (PRP it)) (VP (VBZ is) (ADVP (RB exactly)) (ADJP (RB linearly) (JJ proportional) (PP (TO to) (NP (DT the) (JJ net) (JJ external) (NN force)))))))))))) (. .)))