Hydrostatic Law: Pressure in Fluids

This lecture covers the hydrostatic law, which describes the pressure in fluids at rest under gravity. It explains the equilibrium of forces in a fluid, including weight, pressure, and normal forces. The lecture also discusses the concept of pressure as a scalar quantity, its distribution in a fluid, and its relation to depth. Practical examples, such as air pressure near the Earth's surface and the use of hydraulic presses, are presented to illustrate the application of the hydrostatic law.