Solve this:


Q6. What will be the pressure when 30 N force applied on 120 cm2 area?

          (a) 2.5 × 103 N/m2

          (b) 2.5 × 104 N/m2

          (c) 2.5 × 102 N/m2

          (d) 5 × 103 N/m2

Dear student,
Force applied=30N
Area=120cm^2=120x10^-4m^2
We know that, Pressure=Force/Area
Pressure=30/120x10^-4m^2
Pressure=0.25x10^4N/m^2=2.5x10^3N/m^2
So, the correct answer is (a).
Regards

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Ans = (a )2.5 *10^3 N/ m ^2 .

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