# Question #1762c

##### 1 Answer
Nov 9, 2015

$8000 {\text{N/m}}^{2}$

#### Explanation:

Converting to metres the volume of the cube is given by:

$V = 0.1 \times 0.1 \times 0.1 = 0.001 {\text{m}}^{3}$

The mass of the cube is given by:

Mass = density x volume

$\therefore m = 8000 \times 0.001 = 8 \text{kg}$

The weight of the block $= m g$

$= 8 \times 10 = 80 \text{N}$

Pressure = Force/area

The area of one side of the block is:

$0.1 \times 0.1 = 0.01 {\text{m}}^{2}$

So the pressure is given by:

$P = \frac{F}{A} = \frac{80}{0.01} = 8000 {\text{N/m}}^{2}$