Bicycle brakes allow the rider to slow down in a controlled manner and with out undue wear on the tires.
It is your momentum of moving forward that has to be overcome before your brakes can bring the bicycle to a stop.
Brakes turn kinetic energy into heat.
Using brakes slows your speed.
A tutorial on how to adjust bicycle front cantilever brakes can be found on Youtube in the form of a video outlining the key steps one should take to adjust the bicycle front cantilever brakes.
THe brakes rarely need to stop. But the brakes can be used to make the bike stop.
Brakes help a bicycle to stop, of course --- but do you know why? it's because brakes use friction. When you squeeze the brakes, rubber blocks press against the wheels. The friction between the blocks and the wheels slow your bicycle down.
They get warm and wear when used.
Depends on the type of brakes, but most bike brakes would use levers.
depends on the type. There are hydraulic bike brakes, but most are mechanical.
The brakes and the tire treads.
THey slow it down, if the rider so wishes.
Friction and pressure.