QuestionHi Terry,
I wanted to ask in your professional opinion approximately how long in meters would it take a
-6 cylinder rear wheel drive V6 sedan (3.8 liter engine)
-4 speed automatic
-manufactured in 1991
-with over 350,000km on the odometer
-weighing 1332kg (without passengers)
-with 60% on the brake pads
-disc brakes
-without ABS
-15 inch wheels with approximately 35-40% tread on budget tires
-carrying two adult passengers
-in dry conditions
-on a flat bitumen road rated two stars by AusRAP which indicates:
"Major deficiencies in some road features such as poor roadside environment and/or many minor deficiencies such as insufficient overtaking provision and narrow lanes, and/or poorly designed intersections at regular intervals."
to comfortably come to a complete stop traveling at a speed of 110km/ per hour? By comfortably I mean without locking up the brakes.
Thank you in advance,
Amy
AnswerHello Amy and welcome to AllExperts....
Your question is a bit convoluted. Also, without an ABS system activation (not applicable in your question), it is near impossible to tell the amount of pressure you are applying to the brakes, which makes the question of distance difficult to gauge.
Also, mileage on the odometer and percentage of wear on the brake pads (unless less than minimum) has no influence in the equation. The number of passengers is also somewhat insignificant in this equation.
Ok,I will first do this in U.S. non-metric equivalents and then transpose at the end.
at 110 kmh, you are traveling 68.4 mph, which is 99.8 feet per second.
Finally, you must take into consideration, Perception, Decision and Reaction time which is added to the total braking calculation.
Assuming you are using proper threshold braking from 110km to a full and complete stop on a bitumen (asphalt) roadway that is dry and in good condition (0.8 coefficient of friction or better), your time to come to a full and complete stop is about 300 feet, or in metrics, 91.4 meters.
I hope this has helped. Have a great day.
Terry
