Hey guys, I'm new here and my name's Tracy. I just found out about this site and i think its fabulous. Anyway i had a question and did'nt exactly know where to post it so if this is the wrong forum to post it i'm sorry. Could somebody help me out and solve this question for me. Q. A child weighing 40kg takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 18 m. a) What is the centripetal acceleration of the child? b) What is the magnitude and direction of the force that the seat exerts on the child at the lowest point of the ride? c) What force does the seat exert on the child at the highest point of the ride? d) What force does the seat exert on the child when he is midway between the top and the bottom? That's the question i need solved. Also please show your working. Thanks a lot! And hi again to everyone!