Question

the pressure exerted by the weight of a cubical block is side 4 cm on the surface is 8 pa
calculate the weight of the block

Answer 1

Here,

Side of the cube = 3 cm = 0.03 m

Area of a face of the cube, A = 0.0009 m2

Pressure, P = 5 Pa

We know,

P = F/A

=> F = PA

=> F = (5)(0.0009) = 0.0045 N

This is the weight of the block.