A man draws a circle of the area ${2~cm}^{2}$ then applies a force of $20~N$. Calculate the pressure on that area.

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Solution

The correct option is C
Pa

The area on which the pressure is calculated is ${2 c m}^{2}$ , and the force applied is $20 N$ .

So, pressure = $\frac{F o r c e}{A r e a}$
= $\frac{20 N}{2 \times 10^{- 4} m^{2}}$ [ $∵ 1 c m^{2} = 10^{- 4} m^{2}$ ]
= $10^{5} \frac{N}{m^{2}}$ = $10^{5} P a$

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A man draws a circle of the area \({2~cm}^{2}\) then applies a force of \(20~N\). Calculate the pressure on that area.

The correct option is C Pa The area on which the pressure is calculated is 2cm2, and the force applied is 20 N. So, pressure = ForceArea = 20 N2×10−4 m2 [∵1 cm2=10−4 m2] = 105 Nm2 = 105 Pa

The correct option is C
Pa

The area on which the pressure is calculated is ${2 c m}^{2}$ , and the force applied is $20 N$ .

So, pressure = $\frac{F o r c e}{A r e a}$
= $\frac{20 N}{2 \times 10^{- 4} m^{2}}$ [ $∵ 1 c m^{2} = 10^{- 4} m^{2}$ ]
= $10^{5} \frac{N}{m^{2}}$ = $10^{5} P a$