On a banked race track, the smallest circular path on which cars can move has a radius r1 =104 meter, while the largest has a radius r2 = 163 meter. The height of the outer wall is 18 meter.
(a) Determine the smallest speed at which cars can move on this track without relying on friction.
(b) Determine the largest speed at which cars can move on this track without relying on friction.