( ( With ( uniform ( circular motion ) ) ) ( , ( ( ( the ( only force ) ) ( acting ( upon ( ( an object ) ( traveling ( in ( a circle ) ) ) ) ) ) ) ( ( is ( the ( centripetal force ) ) ) . ) ) ) )
(ROOT (S (PP (IN With) (NP (JJ uniform) (JJ circular) (NN motion))) (, ,) (NP (NP (DT the) (JJ only) (NN force)) (VP (VBG acting) (PP (IN upon) (NP (NP (DT an) (NN object)) (VP (VBG traveling) (PP (IN in) (NP (DT a) (NN circle)))))))) (VP (VBZ is) (NP (DT the) (JJ centripetal) (NN force))) (. .)))
With uniform circular motion, the only force acting upon an object traveling in a circle is the centripetal force.
(ROOT (S (NP (JJ Centripetal) (NNS forces)) (VP (VBP cause) (S (NP (NNS objects)) (VP (TO to) (VP (VB turn) (PRT (RP around)) (ADVP (RB continuously)) (PP (IN in) (NP (DT a) (NN circle))))))) (. .)))