Load the simulation http://www.compadre.org/Physlets/mechanics/prob5_8.cfm and answer the following question: What is the net force on a 100 kg rider when the rider is at position (c), the top of the circle?
If you are having problems using the simulation, you may use the following screenshots to answer the question. Pay attention to the fact that the time is in minutes not seconds.
Are you having technical difficulties? Click here.