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Question
Numerical Problem.
A stone weighs 500 N. Calculate the pressure exerted by it if it makes contact with a surface of area 25 cm2.
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Solution
Given : Weight of a stone F = 500 No
Area A = 25 cm2 = 25 x 10-4 m2
To find : Pressure P = ?
Formula :
Pressure P = `F/A`
= `500/25xx10`-4
Solution: Pressure P = 20 x 104N/m2 (or) 20 x 104 Pa
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