Figure P6.61 shows a Ferris wheel that rotates four times each minute. It carries each car around

Question:

Figure P6.61 shows a Ferris wheel that rotates four times each minute. It carries each car around a circle of diameter 18.0 m.
(a) What is the centripetal acceleration of a rider? What force does the seat exert on a 40.0-kg rider?
(b) At the lowest point of the ride and
(c) At the highest point of the ride?
(d) What force (magnitude and direction) does the seat exert on a rider when the rider is halfway between top and bottom?