Answer:
Option A.
Step-by-step explanation:
Hey there!
Given are;
Pressure (p) = 18N/m^2
Area(a) = 4m^2
Now; We know that;
[tex]pressure(p) = \frac{force(f)}{area(a)} [/tex]
[tex]or \: f = p \times a[/tex]
~ Keep all values.
[tex]f = 18 \times 4[/tex]
Therefore, force(f) = 72N.
Hope it helps.....
