At the beginning of the lesson, the radical function S=15.9 Lf was introduced, where 'S' is the speed of the vehicle in km/h, 'L' is the length of the skid marks in meters, and 'f' is the coefficient of friction. The coefficient of friction for a particular road made of asphalt pavement is 0.80. The new function would be S=15.9√0.80L Determine the length of the skid mark if the vehicle was travelling 52km/h. a. 102.6 m b. 13.4 m c. 8.6 m d. 2.26 m