Frictional Forces
These forces slow us down or stop us when two different things come into contact.
Brake pads work by FRICTION
![Picture](/uploads/2/5/2/9/2529400/4305944.jpg?447)
The two pads are on the opposite side of the wheel. When the brake is pushed on the two pads push on the wheel and slow it down, by the by the friction between the pad and the wheel. The wheel has to be smooth to ensure an even gradual braking.