Question

In a hydraulic press, a force of 20N is applied to a piston of area 2 meters square. If the area of the other piston is 4 meters square, calculate the force exerted on it

Answer 1

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`Pressure \: of \: piston(1) = Pressure \: of \: piston(2) \\`

`(f(1))/(a(1)) = (f(2))/(a(2)) \\`

`(20)/(2) = (f(2))/(4) \\`

`10 = (f(2))/(4) \\`

Multiply sides by 4

`4 * 10 = 4 * (f(2))/(4) \\`

`40 = f(2)`

`f(2) = 40 \: \: N`

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