A curve of radius 20 m is banked so that a 1040 kg car traveling at 60 km/h can round it even if the road is so icy that the coefficient of static friction is approximately zero. The acceleration of gravity is 9.81 m/s2 .
Find the minimum speed at which a car can travel around this curve without skidding if the coefficient of static friction between the road and the tires is 0.7. Answer in units of m/s.