Question

Suppose a force of 1.00 x 104 n is put on a 10.0 cm by 10.0 cm square. What is the pressure?

Answer 1

Answer:

$P=1000000Pa=1MPa=1000kPa$

Explanation:

When the force that is applied is normally and uniformly distributed on a surface, the magnitude of the pressure is obtained by dividing the force applied on the corresponding area:

$P=\frac{F}{A}$

Where:

$P=Pressure\hspace{3}in\hspace{3}Pa.\\F=Force\hspace{3}in\hspace{3}N\\A=Area\hspace{3}in\hspace{3}m^2$

Converting cm to m:

$10cm*\frac{1m}{100cm} = 0.1m$

The area of a square is:

$A=l^2=(0.1)^2=0.01m^2$

Therefore:

$P=\frac{1.00\times10^4}{0.01} =1000000Pa=1MPa=1000kPa$