The piston of a hydraulic automobile lift is 30 cm in diameter. What pressure, in
pascals, is required to lift a car of mass 1500 kg. Also express this pressure in
atmosphere.
The pressure
"P=\\frac{F}{A}=\\frac{mg}{\\pi d^2\/4}""P=\\frac{1500*9.8}{3.14*0.3^2\/4}=2.08*10^5\\:\\rm Pa=2.05\\: atm"
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