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2 lut 2023 · The resistance offered by a fluid, like air and water, is called the drag force or drag when an object moves through it. It acts in a direction opposite to the object’s motion. It is generated by the relative velocity between the solid object and the fluid.
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Definition: DRAG FORCE. Drag Force \(F_D\) is found to be proportional to the square of the speed of the object. Mathematically \[F_D\propto v^2 \] \[F_D = \dfrac{1}{2} C_{\rho} Av^2, \] where \(C\) is the drag coefficient \(A\) is the area of the object facing the fluid, and \(\rho\) is the density of the fluid.
Examples of drag include: Net aerodynamic or hydrodynamic force: Drag acting opposite to the direction of movement of a solid object such as cars, aircraft, [3] and boat hulls. Viscous drag of fluid in a pipe: Drag force on the immobile pipe decreases fluid velocity relative to the pipe. [4][5]
20 lip 2022 · When a solid object moves through a fluid it will experience a resistive force, called the drag force, opposing its motion. The fluid may be a liquid or a gas. This force is a very complicated force that depends on both the properties of the object and the properties of the fluid.
28 gru 2023 · Viscous drag is defined as. the frictional force between an object and a fluid which opposes the motion between the object and the fluid. Viscous drag is calculated using Stoke’s Law; F = 6πηrv. Where. F = viscous drag (N) η = coefficient of viscosity of the fluid (N s m −2 or Pa s) r = radius of the object (m) v = velocity of the object (ms −1)
Express the drag force mathematically; Describe applications of the drag force; Define terminal velocity; Determine an object’s terminal velocity given its mass
Drag Force! Learn the factors that affect it, its types, applications in daily life, medicine, engineering, plus methods for measuring and reducing drag force.
