alleryStart learning →A force of 20 N acts normally on a surface of area 4 cm2. What is the pressure?
A5 x 10^4 Pa
B5 x 10^3 Pa
C8 x 10^4 Pa
D2 x 10^5 Pa
Answer & Solution
Correct answer: A. 5 x 10^4 Pa
p = F/A = 20 / (4 x 10^-4) = 5 x 10^4 Pa.
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