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When you step on the brake pedal, a force is applied directly to a piston of area 'a'. The hydraulic fluid thus pressurized is directed to other pistons of area 'A' >'a' at each wheel which push the brake pads against the rotating disk attached to the wheel.

Since A>a, the applied force is multiplied by the ratio A/a.

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14y ago
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4mo ago

Hydraulic car brakes can be described as a force multiplier because they use fluid to transmit force from the brake pedal to the brake calipers. This amplifies the force applied by the driver, allowing for quicker and more powerful braking than if the force had to be applied directly.

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