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In a hydraulic car brake the master piston has an area of 5 cm^2 while the area of the slave piston is 50 cm^2 when the driver presses on the brake pedal a force of 500 n is exerted on the master piston calculate the pressure transmitted through the brake fluid and the force exerted by the slave piston on the brake pad
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The pressure transmitted through the brake fluid is
P = ,
where is the force the driver applies to the brake pedal (in newtons), and is the area of the master piston in .
So, the pressure is = 1000000 Pa (Pascals).
The force exerted by the slave piston on the brake pad is
= ,
where P is the pressure transmitted through the brake fluid, and is the area of the slave piston in .
So, the force exerted by the slave piston on the brake pad is 1000000*0.005 = 5000 newtons.