Question

what are used in the brake system to increase friction ?

Answer 1

Ever wonder why your hands get warm when you rub them together quickly or why rubbing two sticks together can eventually start a fire? The answer is friction! When two surfaces rub against each other, they naturally resist each other's movement at a microscopic level. This resistance can cause the release of energy in the form of heat, warming your hands, sparking a fire, and so on.[1] The greater the friction, the more energy released, so knowing how to increase the friction between moving parts in a mechanical system can potentially allow you to generate lots of heat!

Answer 2

Braking is the process of controlling the velocity of an object by inhibiting its motion. An object in motion possesses kinetic energyand to bring the object to a stop this kinetic energy must be removed. Removing the kinetic energy can be accomplished by dissipating the energy to the atmosphere through friction or by converting it into another form of energy. The most common type of braking is a mechanical brake which inhibits motion through friction brake pads. A mechanical brake applies a friction force to convert the kinetic energy of the vehicle into thermal energy which then dissipates into the atmosphere.[2] Braking systems which don't use friction are referred to as regenerative braking systems (RBSs). In RBSs, the kinetic energy is converted into other forms of useful energy, which can be stored for later use, increasing fuel efficiency.