In the performance test link, the acceleration and the brakes are the main two test items, usually we contact a new car, often asked the first question is how fast the car is not the brakes, but the problem is that the slow speed in most cases will not have much problem and the brakes are likely to relate to life safety, so today we say the car brakes.
The principle of the brake system is to create enormous friction and convert the vehicle's kinetic energy into heat. As we all know, energy is neither produced nor disappeared from a vacuum, it can only be converted from one form to another, or transferred from one object to the other, in the process of transforming or transferring, the total amount of energy is unchanged. The car converts chemical energy into heat and kinetic energy during the accelerating process, braking system and converting the vehicle's kinetic energy into the air. A car can take 10 seconds to accelerate from stillness to 100 kilometers per hour, but it may take only xx seconds to brake from 100 kilometers an hour, and the brake system is under enormous load. From another point of view, if you want to experience the acceleration of a supercar, you can use a regular home car, but you need to sit in turn and experience it on the brakes.