Question

a metallic cuboid of mass M kg rests on the table with the surface area of 40cm2 in contact with the table. the pressure exerted by the cuboid on the table surface is 1000pa value of M is?? (g=m/s2)

Answer 1

Pressure is the force exerted by an object in contact with a surface.

Pressure = Force/Area

Force = mg

Where g is the acceleration due to gravity (=9.8 $m/s^2$)

Before we calculate, we need to change the units of the area from $cm^{2}$ to $m^2$.

Therefore, $P=\frac{mg}{A} \\1000=\frac{9.8m}{10*10^{-4}}\\ 9.8m=4\\m=0.4kg$