Manitoba Airbrake Practice Exam 2025 – Your All-in-One Guide to Mastering the Airbrake Test!

Doubling your vehicle weight and doubling your speed will result in an eight times increase in stopping distance. This is because, at higher speeds, an object has more kinetic energy and therefore requires a greater distance to come to a stop. Changing the vehicle weight only adds to the overall mass and momentum, further increasing the amount of distance needed to stop. Option A, 4 times, is incorrect because it assumes the stopping distance will only be affected by the speed. Options B and D, 6 times and 10 times respectively, are also incorrect as they do not take into account the doubling of the vehicle weight. So, C, 8 times, is the most accurate answer.