A 15.0 kg child is riding a playground merry-go-round that is rotating at 30.0 rev/min. What centripetal force (in N) must she exert to stay on if she is 2.50 m from its center? (b)What centripetal force (in N) does she need to stay on an amusement park merry-go-round that rotates at 3.00 rev/min if she is 5.00 m from its center

Compare each force with her weight. force from (a) weight

,force from (b) weight