Here's why:
* Terminal velocity depends on:
* Gravity: The stronger the gravity, the faster you'll fall.
* Air resistance: The more air resistance you have (due to your shape and the density of the air), the slower you'll fall.
* Mass: A heavier object will fall faster than a lighter object, but only until air resistance becomes a dominant factor.
* Reaching terminal velocity: You reach terminal velocity when the force of gravity pulling you down is balanced by the force of air resistance pushing you up. At this point, you stop accelerating and fall at a constant speed.
Example:
* A skydiver in a freefall position will reach a terminal velocity of about 120 mph (193 km/h).
* A person falling headfirst will reach a higher terminal velocity (around 200 mph or 322 km/h) due to less air resistance.
Therefore, the height you fall from doesn't directly determine if you reach terminal velocity. You can reach it at any height as long as there is enough time to accelerate to that speed.
However, here's an important point:
* The higher you fall from, the longer you'll have to accelerate and the closer you'll get to terminal velocity.
This is why skydivers jump from high altitudes so they have time to reach their terminal velocity and enjoy a longer freefall experience.