Terminal Velocity -

When an object starts to fall, gravity is the dominant force, causing it to speed up rapidly. However, as its speed increases, it collides with more air particles, which creates an opposing upward force called air resistance or drag. : Initially, gravity ( Fgcap F sub g ) is much stronger than drag ( Fdcap F sub d ), so the object accelerates downward.

: Heavier objects require more drag to balance their weight, meaning they must fall faster to reach their terminal speed. Terminal Velocity

vt=2mgρACdv sub t equals the square root of the fraction with numerator 2 m g and denominator rho cap A cap C sub d end-fraction end-root Definition Terminal velocity Mass of the falling object Acceleration due to gravity ( Density of the fluid (e.g., air or water) Projected frontal area of the object Cdcap C sub d Drag coefficient (based on the object's shape) Key Factors Influencing Speed When an object starts to fall, gravity is

: Objects with a large surface area (like an open parachute) experience more drag and reach a much lower terminal velocity. : Heavier objects require more drag to balance