Air pressure

The meteorological station measured the air pressure of 1060 hPa (hectopascals). In addition to measuring instruments, there is a residential house with a flat roof with dimensions of 10 m and 28 m. What pressure force in MN (meganewtons) from the air on this roof?

Correct answer:

x =  29.68 MN

Step-by-step explanation:

$$\begin{gathered} a=10\text{m} \\ b=28\text{m} \\ S=a\cdot b=10\cdot 28=280{\text{m}}^2 \\ p=1060\text{hPa} \\ {p}_2=p/10/1000=1060/10/1000=\frac{53}{500}=0.106\text{MPa} \\ x=p_2\cdot S=0.106\cdot 280=29.68\text{MN} \end{gathered}$$

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