A thrust of 20N is acting on an area of 2m2. How much pressure is acting on the surface?
Pressure can be defined as the thrust acting per unit area. Here, Pressure = ForceArea = 202 Nm−2 = 10 Nm−2
The atmospheric pressure at the surface of the earth is 105Nm-2. How much thrust acts on a man whose average surface area is 3m2 ?