Question

If $45N$ force is exerted on the area of $2c{m}^2$ of an object, calculate the pressure produced by the force.

• A. $90Pa$
• B. $22.5Pa$
• C. $20Pa$
• D. $50Pa$

Answer 1

The correct option is B $22.5Pa$

$\text{As we know, Presswre}\left(P\right)=\left(\frac{\text{Force}\left(F\right)}{\text{Area}\left(A\right)}\right)$

$$\begin{array}{cc}A=2{cm}^2=2\times {10}^{-4}{m}^2& \\ =& \frac{45}{2\times {10}^{-4}}\end{array}$$

$=22.5\times {10}^{4}Kg{m}^{-1}{s}^{-2}$