Dynamics of Circular Motion 1. A car traveling at 75.0 km/h rounds a level curve of radius 82.0 m. What is the coefficient of friction between the tires and the road surface necessary to make this turn? SHOW ALL WORK Draw a free body diagram 2. On an icy day a car approaches a level curve with a radius of 72.3 m. If the coefficient of friction between the tires and the ice is 0.128, what is the maximum speed that the car should make the turn? SHOW ALL WORK B. The speed limit on the road is posted at 30 mph. Is it safe to make the curve at this posted speed limit with the icy conditions? Explain using evidence from your solution. Draw a free Body Diagram