( ( ( 6 -RRB- ) ( Calculate instantaneous ) ) ( ( ( velocities and ) accelerations ) . ) )
(ROOT (S (NP (QP (CD 6) (CD -RRB-)) (NNP Calculate) (NNS instantaneous)) (VP (VP (VBZ velocities)) (CC and) (VP (VBZ accelerations))) (. .)))
6) Calculate instantaneous velocities and accelerations.
(ROOT (S (NP (JJ Instantaneous) (NN velocity)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT the) (NN velocity)) (PP (IN of) (NP (DT the) (NN object))))) (PP (IN at) (NP (DT a) (VBN given) (NN moment))))) (. .)))