You and your roommate are walking in a park when you see a child's merry-go-round. Your roommate, mass m, sits on the edge of the hpoorizintal wheel of radius r while you push it faster and faster. At an easily measurable speed v, your roommate slips off. Draw the forces acting on your roommate the instant before slippage. Include a coordinate system. You know the values of m, g, r, and v.