Find the force exerted by the passenger on the seat.
A Ferris wheel with a radius of 20m makes 1 revolution every 9seconds. What force does a 55kg passenger exert on the seat when she is at the top of the Ferris wheel?
1. 1.0 N down
2. 5.3 N sideways
3. 4.45 N up
4. 2.87 N down