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PhysicsLover0
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So if I double the velocity, aerodynamic drag doubles as well?
Careful, there. This will get you into all kinds of trouble.Researcher X said:It takes 4 times the energy to achieve twice the velocity for a given mass even in a vacuum, anyway.
Now you are confusing the energy needed to get up to some velocity versus the energy needed to maintain that velocity. Ignoring drag, the energy required to maintain a particular velocity is *zero*.With drag squaring with a doubling in speed, the power requirement for overcoming that force will be 8 times when it was twice as slow!
The force of drag is a force that opposes the motion of an object through a fluid (such as air or water).
The force of drag is directly proportional to the velocity of the object. This means that as the velocity increases, the force of drag also increases.
The force of drag is affected by the size and shape of the object, the density of the fluid, and the viscosity (thickness) of the fluid.
The force of drag is important because it affects the movement and behavior of objects in fluids. Understanding the force of drag helps scientists design more efficient and streamlined objects, such as airplanes and cars.
The force of drag can be calculated using the formula: Fd = 1/2 * ρ * v^2 * A * Cd, where ρ is the density of the fluid, v is the velocity of the object, A is the cross-sectional area of the object, and Cd is the drag coefficient (a measure of the object's shape and surface roughness).