Problem 75 - Essential Calculus

Question

Define fluid pressure.

Step-by-Step Solution

Answer

Fluid pressure is the force per unit area applied on a surface by a fluid (liquid or gas). It transmits force equally in all directions and its unit is Pascals (Pa).

Step 1: Define Force

Force is simply the push or pull on an object resulting from the object's interaction with another thing. It has both magnitude and direction and is typically measured in newtons (N).

Step 2: Define Area

In physics, the area is defined as the quantity that expresses the extent of a two-dimensional region or planar lamina in the plane. The area is mathematically represented as \( A \) and is generally measured in square meters (m²).

Step 3: Define Fluid Pressure

Having defined force and area, fluid pressure can now be defined. Fluid pressure is the force exerted by a fluid per unit area. It occurs when a force is applied to a fluid, causing it to 'push back' against the object or surface that is applying the force.