(a) A 19.0 kg child is riding a playground merry-go-round that is rotating at 50.0 rev/min. What centripetal force (in N) must she exert to stay on if she is 2.00 m from its center? (Enter a number.) N (b) What centripetal force (in N) does she need to stay on an amusement park merry-goround that rotates at 3.00 rev/min if she is 5.00 m from its center? (Enter a number.) N (c) Compare each force with her weight. (For each answer, enter a number.) (force from (a))/(WEight) = (force from (b))/(weight) =