( ( An object ) ( always ( ( ( moves ( in response ) ) ( to ( a ( non-zero ( NET force ) ) ) ) ) . ) ) )
(ROOT (S (NP (DT An) (NN object)) (ADVP (RB always)) (VP (VBZ moves) (PP (IN in) (NP (NN response))) (PP (TO to) (NP (DT a) (JJ non-zero) (NNP NET) (NN force)))) (. .)))
An object always moves in response to a non-zero NET force.
(ROOT (S (NP (DT A) (VBG moving) (NN car)) (VP (VBZ is) (VP (VBN said) (S (VP (TO to) (VP (VB be) (PP (IN in) (NP (JJ dynamic) (NN equilibrium))) (SBAR (WHADVP (WRB when)) (S (NP (PRP it)) (VP (VBZ is) (NP (CD zero) (JJ net) (NN force)))))))))) (. .)))