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shizzznit
Im taking AP Physics as well as Calculas but haven't covered the topic of Air Resistance yet. I am trying to figure out what the air resistance would be on a baseball. Could someone help me out?
Much thanks
Much thanks
It turns out that in the real world it's more complicated, but instead of modifying the equation to one more realistic, Cd is redefined as a function (often implemented as an interpolated table) that varies with speed for a given medium, such as air, and a specific object (such as a bullet, http://en.wikipedia.org/wiki/External_ballistics).jamesrc said:Roughly:
[itex] F_D = \frac{C_D\rho A v^2}{2} [/itex]
Air resistance, also known as drag, is a force that opposes the motion of an object through the air. It is caused by air particles colliding with the surface of the moving object.
Air resistance can be calculated using the formula: Drag Force (D) = 0.5 × Drag Coefficient (Cd) × Air Density (ρ) × Velocity² (v²) × Cross-sectional Area (A). This formula is derived from the principles of fluid dynamics.
Several factors affect air resistance including the speed of the object, the cross-sectional area facing the airflow, the shape of the object (affecting the drag coefficient), and the air density.
The shape of an object significantly affects its air resistance. Streamlined shapes have lower air resistance compared to blunt or irregular shapes. The Drag Coefficient (Cd) in the formula represents this effect.
No, air resistance increases with the square of the object's speed. This means that as an object moves faster, the air resistance exerted on it increases exponentially.
In situations where objects are moving at low speeds or where precision is not critical, air resistance can sometimes be ignored. However, for high-speed objects, like airplanes or fast cars, air resistance becomes a significant factor.
Air density, which can vary with altitude and weather conditions, affects air resistance. Higher air density increases air resistance, while lower air density reduces it.