Answer :
[tex]\begin{gathered} Given:\text{ edge lenght= 0.30m} \\ so\text{ the area of the bottom surface= 0.30m*0.30m } \\ A=0.09m^2 \\ and\text{ this is also the area of horizontal surface.} \\ weight=240N \\ \text{ pressure exerted by the cube on the horizontal surface=?} \\ \end{gathered}[/tex][tex]\begin{gathered} pressure\text{ is given by the following formula-} \\ P=\frac{F}{A} \\ Here\text{ P is pressure acting on the surface.} \\ F=\text{ Force acting on the surface} \\ A=\text{ Area of the surface.} \end{gathered}[/tex][tex]\begin{gathered} here\text{ force acting on the surface = 240N in downward direction} \\ putting\text{ all the values in the formula } \\ P=\frac{240N}{0.09m^2} \\ P=2666.67\text{ N/m}^2 \end{gathered}[/tex]
So the pressure exerted by the cube on the surface is 2666.67N/m^2 in the downward direction.
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