Module 20

- Mom 20 A 29.0 kg child is riding a playground merry-go-round. If the child is 3.00 m from the center of the merry-go-round and has a constant tangential speed of 4.00 m/s. What is the magnitude of the net centripetal force that is necessary to keep her on the merry-go-round at this radius? l l N Submit Answer 2. [l2 Points] DETAILS OSCOLPHYS1 6.P.026.WA. MY NOTES ASK YOUR TEACHER You whirl a ball tied to the end of the rope in a horizontal circle at constant speed, as shown in the diagram below. Use the direction rosette to answer the following questions. 1 8 | 2 7' >3 6 l 4 A 5 9 magnitude zero (a) What is the direction of the centripetal force acting on the ball when it is at location A? :J (b) If the string breaks when the ball is at location A, in what direction will the ball move? C]