These variables dictate the exact point at which gravitational pull and aerodynamic resistance find equilibrium. A human skydiver, for instance, typically reaches a terminal velocity of approximately 120 miles per hour in a belly-to-earth position.
Skydiver Terminal Velocity Real Example: Reaching 120 mph in Belly-to-Earth Position
This speed is significantly lower than that of a streamlined head-first position, which minimizes the drag coefficient and allows for a faster descent. Mass and Cross-Sectional Area: Heavier objects with smaller surface areas relative to their mass generally achieve higher speeds.
The Physics Behind the Fall To define terminal velocity, one must first understand the two primary forces acting on a falling body. This equation provides a clear framework for predicting how different objects will behave in various environments.
Skydiver Terminal Velocity Real Example: Reaching 120 mph in Belly-to-Earth Position
Because the density of air decreases with altitude, a skydiver falling from a high-altitude jump will initially reach a higher terminal velocity in the thinner upper atmosphere compared to the denser air near the ground. This relationship highlights the inverse correlation between surface area and achievable speed, as well as the direct relationship with mass.
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