How Brakes Work
There Are Two Types Of Braking Systems
Drum Brakes.
These have been around for over 100 years and were great in their day but when there was a lot of heavy braking they tended to overheat and become less efficient
Disc Brakes
To solve the problem with Drum Brakes overheating, the engineers developed Disc Brakes. To make these more effective they also developed power brakes. This is a system that increases the pressure you apply to the brake pedal to give greater reduction in speed