Answer to Question #202518 in Physics for Mary

Question #202518

What must the surface area of a piston be,if a pressure of 300kPa is used to give a desired upward force of 2000N?

Expert's answer

By the definition of the pressure, we have:

"P=\\dfrac{F}{A},""A=\\dfrac{F}{P}=\\dfrac{2000\\ N}{3\\cdot10^5\\ \\dfrac{N}{m^2}}=6.67\\cdot10^{-3}\\ m^2=66.7\\ cm^2."

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