A cube of each side of 3m length is subjected to normal force of 36N. What will be stress?

Question

asked Jul 19, 2019 185k views

1 Answer

Arun Sooraj · Answer 1 · 2019-07-25T23:05:22+0000

To calculate the the stress on the cube, we use the formula

Stress =(F)/(A)

Here, F is the normal force on the cube and A is surface area of the cube.

We know that every cube has six faces, therefore surface area of the cube,

A= 6* l^2

But according to question, the force is subjected to normal on the cube, therefore we take only one face of cube, then the surface area of the cube,

A = (l)^2

As given,
$l= 3 m \ so,A=(3)^2=9 m^2$

Given
F=36 N

Thus,
$stress= (36)/(9) = 4\ N/m^2$