Question

A 40 kg box has a surface area of 0.2 m2, determine its pressure.

Answer 1

P = 1960 Pa

Step-by-step explanation:

The pressure is computed as the force acting upon a surface divided by the area of the surface

`P=(F)/(A)`

The box has 40 kg, it presses on its own surface when placed over a table or any flat area. The acting force is its weight.

`F = W = m.g = 40 kg \ 9.8m/sec^2 = 392 N`

The pressure is:

`P=(392N)/(0.2m^2)=1960 \ Pa`