When a car begins to brake, the car is affected by many different forces. These include:
potential
Drum & Disc are the two types of braking systems on a car.
* Force at the wheels (acceleration, braking, turning, maintaining constant velocity, normal force) * Drag from air movement * Gravity
braking
Assuming you mean "braking", aggressive braking.
ABS??
Hydraulics.
The braking system makes a car stop.
Proportioning valve
Assuming that braking force is the friction force; F=m*a 4000 = 1000*a a = 4 m/s^2
If your car vibrates when you are braking, you might have pads that have worn unevenly. You can have the brake pads inspected to see if there is wearing on the drum or if you have a problem with your rotors.
The sound of the braking railroad cars shreiked through the night. Now matter how hard he pushed the pedal, the car was not braking.