The brakes of a car use the force of friction to slow down and eventually stop the vehicle. Friction is the force that opposes motion when two surfaces are in contact and slide against each other. When the brakes are applied, they create friction between the brake pads and the brake discs or drums, converting the kinetic energy of the vehicle's motion into thermal energy, which is dissipated as heat. This resistance causes the tires to slow down, and eventually bring the car to a stop.
The amount of force required to stop a car depends on several factors, such as the speed of the vehicle, its mass, the coefficient of friction between the brake pads and the discs/drums, and the efficiency of the braking system.
