please help! i'm stuck with this question and i need the answer as fast as possible

At a velodrome bicycle riders race around the inside of a course shaped like a large cup whose angle increases as the rider moves up the side. At one point the radius of the path is 50.0 m and the track makes an angle of 45.0 with the horizontal. If a rider is perpendicular to the track at this point, and the track is frictionless, what is the speed of the rider? (Non-anonymous question ()) * (4 Points)