Putting the throttle or gearshift in reverse thrust.
Weight transfer. When a car brakes, its weight moves forward and causes the front brakes to do the majority of the work in stopping the car.
Because your brakes need oiled dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddduuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Front brakes have significantly more stopping power than rear brakes.
Because you are decelerating sharply
BRAKES
Disc brakes have stopping power because they use friction to slow down or stop a vehicle. The brake pads press against the rotor, creating friction that helps to reduce the speed of the vehicle.
Larger brakes = shorter stopping distance.
Certainly, all four wheel brakes are used in normal stopping. However, the lions share of the stopping power is from the front brakes, yes.
Unbalanced , because you arrest any forward motion ,by the application of the brakes, which is the means by which the wheelchair is designed .
Inertia affects the stopping distance of a car by causing the car to continue moving forward even after the brakes are applied. The greater the inertia of the car, the longer it will take for the car to come to a complete stop. This is because the car's momentum must be overcome by the braking force in order to bring the car to a halt.
The front brakes on any vehicle do most of the stopping. When you apply the brakes the weight shifts to the front of the vehicle. For this reason the front brakes are needed more than the rear. Try stopping a vehicle with just the hand brake which applies only the rear brakes.
Front brakes provide about 70% of stopping force. Disc brakes have an advantage over drum brakes in that they can provide more stopping force without overheating (and thus loosing their stopping efficiency). I believe drum brake units are less costly to manufacture than disc brakes, so using them on the rear also saves manufacturing costs.