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Definition: Drag Force. Drag force \(F_D\) is proportional to the square of the speed of the object. Mathematically, \[F_{D} = \frac{1}{2} C \rho A v^{2},\] where \(C\) is the drag coefficient, \(A\) is the area of the object facing the fluid, and \(\rho\) is the density of the fluid.
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.
For a swimmer moving at constant speed through the water the thrust force is equal to the drag force. The drag force is created by the motion of the swimmer through the water. This force resists the motion of the swimmer through the water.
Drag and lift are the main propelling forces that are used by the swimmers while swimming. Resistance (also known as drag) can be broken into three main groupings: Frontal resistance, skin friction and eddy resistance.
Viscous drag allows us to describe force using the equation: r F DX= −1 2C ρwAswimmerV x ˆ . where C is the drag coefficient, ρ is the density of the medium, A is the cross sectional area of the swimmer, and V is the velocity.
31 Δεκ 2011 · The inherent hydrodynamic resistance force, or passive drag, of a swimmer directly influences how they move through the water.
Express mathematically the drag force. Discuss the applications of drag force. Define terminal velocity. Determine the terminal velocity given mass. Another interesting force in everyday life is the force of drag on an object when it is moving in a fluid (either a gas or a liquid). You feel the drag force when you move your hand through water.
