Higher June 2019 Paper 1R Q12

12

\[\text{pressure} = \dfrac{\text{force}}{\text{area}}\]

A box, in the shape of a cuboid, is going to be put on a table.
The whole of one face of the box will be in contact with the table.
The force exerted by the box on the table is always 105 newtons.
The box is 5 m by 4 m by 3 m.
The greatest pressure exerted by the box on the table is \(P\) newtons/m²
The least pressure exerted by the box on the table is \(Q\) newtons/m²
Work out the value of \(P - Q\)

(3)