Manitoba Class 3 Drivers Licence Practice Test 2026 - Free Class 3 Driving Test Questions and Study Guide

If the speed of the vehicle is doubled, the vehicle will have twice the kinetic energy. In order to bring the vehicle to a stop, the braking force must be equal to the kinetic energy. Therefore, the braking force must also be doubled. Since the question is asking for how many times the braking force must be increased, the answer is two times, which is option C. The other options are incorrect because they do not accurately describe the relationship between the speed and braking force. Option A suggests that the braking force only needs to be increased by two times, which is incorrect as the braking force must be equal to the kinetic energy of the vehicle. Options B, D and E suggest that the braking force needs to be increased by three, four, and six times respectively, which are also incorrect.