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AP Physics - Drag Force Cheat Sheet (DRAFT) by

Drag Force/Fluid Resistance/Air Resistance

This is a draft cheat sheet. It is a work in progress and is not finished yet.


Drag Force
A force that opposes or resists motion, caused by collisions of moving objects with molecules in a fluid like air or water
Terminal Velocity
The constant speed a freely falling object will eventually reach when the fluid through which the object is falling prevents further accele­ration



Fdrag : drag force
Cdrag : drag constant
A : surface area
ρ ("rh­o") : density of the fluid
V : velocity of object

Example Problem