I am working on the following problem:
Note that 0.5*N is the force due to friction pictured in the FBD.
When I try to solve this, my intuition is to draw the friction force upwards rather than downwards. If the "cushion" wasn't spinning, then the guy would slide downwards, and the friction force would be upwards. Depending on how quickly he is spinning, the friction force COULD be upwards, but how do we know with this type of problem?
I tried solving the problem my way, and I do get a different answer.