A curve with a 120 m radius on a level road in banked at the correct angle fora speed of 20 m/s. If a car rounds this curve at 30 m/s, what is the minimumcoefficient of static friction needed between the tires and the road to preventskidding

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.