Mechanical Properties of Fluids

The pressure exerted by a fluid

The pressure exerted by a fluid at rest increases with depth and is given by \( P = \rho g h \), where \( \rho \) is the fluid density, \( g \) is acc

When pressure is applied to

When pressure is applied to an enclosed fluid, it is transmitted equally in all directions. This principle is used in hydraulic lifts, brakes, and jac

The surface of a liquid behaves

The surface of a liquid behaves like a stretched membrane due to unbalanced cohesive forces at the surface. It causes small drops to be spherical and

Viscosity is the internal friction

Viscosity is the internal friction of a fluid that resists flow. Stokes’ Law gives the viscous force on a sphere: \( F = 6\pi \eta r v \), which helps

In a flowing fluid

In a flowing fluid, where the speed is high, the pressure is low, and vice versa. This is derived from energy conservation in fluids.