Problem 2. In a popular amusment park ride, a rotating cylinder of radius 3.00 m is set in rotation at an angular speed of 5.00 rad. The floor then drops away, leaving the riders suspended against the wall, as in Fig. 1. (a) Draw the free body diagram of a rider. What force is keeping the ridres in the circle(e.g. which force palys the role of the centripetal force)? (b) Find the minimum coefficient of friction that will keep the rider stuck to the wall (e.g. prevents him from slipping). Figure 1: Rotating cylinder ride. Problen