Organic acids are of two types. One has the COOH group (the carboxyl group). An example is acetic acid (CH3COOH), the acid in vinegar. It is made by oxidizing grain alcohol or by the fermentation of the fruit sugar in cider. The other type has a phenol group, as in phenol (C6H5OH).
Calculate the total braking distance. This formula is 1/2 the initial velocity in feet per second multiplied by the time required to stop, which is 0.5 x 102.7 x 5.135 = 263.68. The calculated thinking distance is 2 x 102.7 = 205.4. Add the two numbers together. 469.08 feet is the total braking distance.
Physics Notes. Car Braking Distances. The following table comes from data originally published in Popular Science and AutoWeek magazines1. Stopping distances are for new cars (1991-1995). The values of stopping distances (from 60 mi/h = 97 km/h = 27 m/s) for 55 vehicles ranged from 114 ft (35 m) to 179 ft (55 m) with an average of 140 ft (43 m).