A car of mass M = 1500 kg traveling at 45.0 km/hour enters a banked turn covered with ice.

A car of mass M = 1500 kg traveling at 45.0 km/hour enters a banked turn covered with ice. The road is banked at an angle theta, and there is no friction between the road and the car's tiresWhat is the radius r of the turn if theta = 20.0^circ (assuming the car continues in uniform circular motion around the turn)?Express your answer in meters.