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A force of 100 N acts on a surface area ...

A force of 100 N acts on a surface area 25 cm`""^(2)`. Calculate the pressure. Calculate the changed pressure, if the force is now reduced to 25 N.

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Here, F=100N, `A=25cm^(2)=0.0025m^(2)`
`p=F/A =(100)/(0.0025)=40000 =4 xx 10^(4)Pa`
Now, F=25N, `A=0.0025m^(2)`
`P=F/A=(25)/(0.0025)=1000=10^(4)Pa`
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