Question

The pressure exerted by a force of 50 N normal to the nail of area $1m{m}^2$ is

• A. $5\times {10}^{7}Pa$
• B. $5\times {10}^{6}Pa$
• C. $5\times {10}^{5}Pa$
• D. $5\times {10}^{4}Pa$

Answer 1

The correct option is A $5\times {10}^{7}Pa$

$Pressure=\frac{Thrust}{Area}$
$=\frac{50N}{1m{m}^2}$
$1mm={10}^{-3}m$
$1m{m}^2={10}^{-6}{m}^2$
Then, we get
$P=\frac{50}{{10}^{-6}}=50\times {10}^{7}Pa$