( There ( ( will ( arise ( centripetal ( and ( centrifugal forces ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (MD will) (VP (VB arise) (NP (JJ centripetal) (CC and) (JJ centrifugal) (NNS forces)))) (. .)))
There will arise centripetal and centrifugal forces.
(ROOT (S (NP (JJ Centripetal) (NN force)) (VP (VBZ is) (NP (NP (DT the) (NN force)) (SBAR (WHNP (WDT that)) (S (VP (VBZ causes) (NP (JJ centripetal) (NN acceleration))))))) (. .)))