Question : Question that the ice has melted, so that there a coefficient

Question

that the ice has melted, so that there is a coefficient of static friction mu between the road and the car's tires. What is ?min, the minimum value of the coefficient of static friction between the tires and the road required to prevent the car from slipping? Assume that the car's speed is still 60 km/hour and that the radius of the curve is 77.9