With what force does the air press on the surface of the table, the length of which is 1.2 m

With what force does the air press on the surface of the table, the length of which is 1.2 m and the width is 60 cm, if the atmospheric pressure is 760 mm Hg?

Let’s convert all units to the SI system:

60 cm = 0.6 m;

760 mm. rt. Art. = 101325 Pa;

Find the area of the table:

0.6 * 1, 2 = 0.72 m2

It is known that pressure is calculated as the force acting on the surface, referred to the surface area. Then:

F = P * S = 101325 * 0.72 = 72954 N.

Answer: F = 72954 N