Police can estimate the speed of a vehicle before the brakes are applied using the formula 0.75d=(s^2)/(30.25) where s is the speed in miles per hour and d is the length of the vehicle’s skid marks. what was the approximate speed of a vehicle that left a skid mark measuring 150 feet? a) about 11 miles per hour b) about 15 miles per hour c) about 58 miles per hour d) about 67 miles per hour