Question

the pressure exerted by the weight of a cubical box of side 3cm on the surface is 5 pascals . calculate the weight of the block

Answer 1

Hello Friend !!!

Given :-

Side = 3 cm = 0.03 m
Area = Side² = 0.03² = 0.0009 m².
Pressure = 5 Pa.

We know that, 
$Pressure = \frac{force}{area} \\ Force = pressureXarea \\ = 5X0.0009 \\ = 0.0045 N.$

Hence, the weight of box is 0.0045 N.

Hope it helps...

Answer 2

Hi

It is given that the side of cube is 3 cm. (i. e. 0.03 m).
So, the area will be 0.03² = 0.0009 m².
Given pressure = 5 Pa.

By using formula...
F = PA
F = 5 X 0.0009
F = 0.0045 N.

Hence, the weight of box is 0.0045 N.

Hope I helped You.