Question

A wooden box of weight 140 N is kept on a table. The area of cross-section of the box is 5 m². Calculate the pressure exerted by the box on the table.

Answer 1

Step 1: Given data

Force (F) weight of the box = $140N$

Area (A) of the cross-section = $5m²$

Step 2: Formula used

Pressure is given as,

$$\begin{gathered} pressure=\frac{force}{area} \\ P=\frac{F}{A} \end{gathered}$$

Step 3: Finding pressure

Putting all the values, we get

$P=\frac{140}{5}=28N{m}^{-2}=28Pa.$

Hence, the pressure exerted by the box on the table is $28Pa.$