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.
Braking distance is affected by: 1  The car (worn brakes, extra weight, bald tyres etc) Note that for AQA syllabus 4403 the examiners limit 'poor condition of the car' to the car's brakes or tyres. 2  The road (poor surface, spilt oil etc).3  The weather (wet, icy-anything that reduces friction).topping distance depends on the speed of the car click on the above graphic to see an enlargement of it. That is why we have speed limits-the more likely it is for a driver to have to stop, the lower the speed limit.