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AP Physics 1
8.2 Pressure
IntermediateMCQMathematicalConceptual14k
Cross-sectional view of the hydraulic brake system with two pistons.
Cross-sectional view of the hydraulic brake system with two pistons.
A hydraulic brake system consists of an enclosed, fluid-filled horizontal chamber with two movable circular pistons. The input piston has a diameter \(d_A\) and the output piston has a diameter \(d_B = 2d_A\). An external force \(F_A\) applied to the input piston creates a fluid pressure \(P_A\) adjacent to the input piston. The fluid transmits this force to the output piston, resulting in a fluid pressure \(P_B\) adjacent to the output piston and an output force \(F_B\). How do the pressure \(P_B\) and the force \(F_B\) compare to \(P_A\) and \(F_A\)?

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