What happens when pressing the clutch and brake simultaneously?

[LaJulia]

Simultaneously pressing the clutch and brake pedals will result in the loss of engine traction, leading to longer braking distances and increased safety risks. Here are some extended details: Principle: Pressing the brake is equivalent to slowing down the wheels to restrain the engine, while the clutch serves as the coupler between the wheels and the engine. If the clutch is not pressed, the engine and wheels remain 100% synchronized (meaning for every m revolutions of the engine, the wheels must rotate n times, where the ratio of m to n is determined by the gear ratio of the transmission). Therefore, a decrease in vehicle speed will inevitably cause the engine speed to drop as well. If the engine speed drops too low, the car body will shake and eventually stall. The method to decouple the engine from the wheels is to press the clutch.