Here's a breakdown:
* Gravity: Pulls the object downwards, constantly increasing its speed.
* Air Resistance: Acts in the opposite direction of motion, increasing as the object's speed increases.
As an object falls:
1. Initial Acceleration: At the start, gravity dominates, causing the object to accelerate rapidly.
2. Increasing Air Resistance: As the object speeds up, air resistance increases.
3. Balancing Forces: Eventually, the upward force of air resistance becomes equal to the downward force of gravity.
4. Terminal Velocity Reached: When these forces are balanced, the object stops accelerating and falls at a constant speed, known as terminal velocity.
Important Notes:
* Terminal velocity depends on several factors: The object's shape, size, mass, and the density of the air all influence terminal velocity.
* Not a fixed speed: Terminal velocity is not a fixed number; it changes depending on the factors mentioned above.
* Not always reached: Objects falling from very short distances might not reach terminal velocity before hitting the ground.
Let me know if you'd like to know more about any specific aspect of terminal velocity!
