Calculating force and area using the pressure equation

Pressure is the force on an object that is spread over a surface area. The equation for pressure is P = F/A. Pressure can be measured for a solid is pushing on a solid, but the case of a solid pushing on a liquid or gas requires that the fluid be confined in a container.

Pressure is defined as the physical force exerted on an object. The force applied is perpendicular to the surface of objects per unit area. The basic formula for pressure is F/A (Force per unit area). Unit of pressure is Pascals (Pa).

1. First convert 150 kPa to Pa:
2. 150 × 1,000 = 150,000.
3. Next substitute the values into the equation:
4. force normal to a surface area = pressure × area of that surface.
5. force = 150,000 × 180.
6. force = 27,000,000 N.

Pressure and force are related, and so you can calculate one if you know the other by using the physics equation, P = F/A. Because pressure is force divided by area, its meter-kilogram-second (MKS) units are newtons per square meter, or N/m2.

The relation between pressure and area is that pressure and area are inversely proportional to each other. That is when area decreases pressure exerted on that area increases. When area increases pressure exerted on that area decreases.

Calculating pressure

1. To calculate pressure, you need to know two things:
2. Pressure is calculated using this equation:
3. pressure = force ÷ area.

pascal

In order to understand the difference, we need to understand the definition and its application. Force is the push and pull action resulting in the change of motion and direction, whereas pressure is the physical force per unit area.

pressure is inversely proportional to area , if the area is less then pressure will be more .

A pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared. For example, standard atmospheric pressure (or 1 atm) is defined as 101.325 kPa. The millibar, a unit of air pressure often used in meteorology, is equal to 100 Pa.

The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N/m2, or kg·m−1·s−2).

The stress formula is the divided product of the force by the cross-section area. Stress = /frac{Force}{Area}

Formula

1. Stress: S = F/A.
2. Force: F = S*A.
3. Area: A = F/S.
4. Where, S = Stress, F = Force, A = Area.