* Terminal Velocity: An object falling through the air will eventually reach a constant speed called terminal velocity. This is the point where the force of gravity pulling the object down is balanced by the force of air resistance pushing it up.
* Factors Affecting Terminal Velocity: Terminal velocity depends on:
* Mass and Shape: A heavier or more aerodynamic object will have a higher terminal velocity.
* Air Density: Thinner air (like at higher altitudes) will allow for higher terminal velocity.
* No Vacuum: In a vacuum, there's no air resistance, so an object would continuously accelerate until it hit the Earth.
Examples:
* Skydiver: A skydiver with a parachute can reach a terminal velocity of around 120 mph.
* Raindrop: A raindrop has a much lower terminal velocity, usually around 7 mph.
In short, the speed an object reaches when falling from the sky depends on its size, shape, and the air density around it.