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What is the force that brakes use to stop a car?

FrictionMost cars use friction between the rotor and the brake pads to slow and stop a car, however, in some newer cars, dynamic braking is used, which reduces friction and for hybrid or electric vehicles, regenerates power and feeds it back to the batteries.


Why is it hard to stop fast moving cars?

It is hard to stop fast-moving cars because of their momentum. Momentum is the product of an object's mass and velocity, and the greater the momentum, the more force is required to change the object's speed or direction. Fast-moving cars have high momentum, making it difficult for brakes to overcome that momentum and bring the car to a stop quickly.


What will happen with 2 cars with different masses travel at the same speed down a hill toward a stop sign?

As long as the drivers apply the brakes appropriately, nothing bad will happen, and both cars will stop. The brakes of the more massive car will heat up a little more, because the more massive car has more momentum which will be dissipated as heat. Presumably, the engineers who designed the brakes took this into account.


WHICH FORCE CAUSES A BICYCLE TO STOP WHEN ITS BRAKES ARE APPLIED?

Friction between the brake pads and the wheel rim or disc creates the force that causes a bicycle to stop when its brakes are applied. This friction generates heat as the brake pads press against the wheel, gradually slowing down and eventually halting the rotation of the wheel.


How do anti-lock brakes enable a vehicle to stop more quickly compared to conventional brakes?

Anti-lock brakes enable a vehicle to stop more quickly compared to conventional brakes by preventing the wheels from locking up during hard braking. This allows the driver to maintain steering control and avoid skidding, resulting in a shorter stopping distance.