A heavy cargo truck has a weight of 90 kN90\text{ kN}90 kN. Its tyres have a total area of 0.6 m2 in contact with the road.
Calculate the average pressure the truck exerts on the road.
Use the equation:
pressure=force normal to a surfacearea of that surface \text{pressure} = \frac{\text{force normal to a surface}}{\text{area of that surface}} pressure=area of that surfaceforce normal to a surface54 Pa54\text{ Pa}54 Pa
150 Pa150\text{ Pa}150 Pa
54 000 Pa54\,000\text{ Pa}54000 Pa
150 000 Pa150\,000\text{ Pa}150000 Pa