Velocity:
* Starts at zero: The object begins at rest, so its initial velocity is 0 m/s.
* Increases steadily: As the object falls, gravity pulls on it, causing it to accelerate downwards. This means its velocity increases constantly.
* Magnitude: The velocity increases linearly with time. The longer the object falls, the faster it goes.
* Direction: Velocity is a vector quantity, meaning it has both magnitude and direction. In this case, the velocity is always pointing downwards (assuming we're ignoring air resistance).
Acceleration:
* Constant: The acceleration due to gravity is a constant value (approximately 9.8 m/s² near the Earth's surface). This means the object's velocity increases by 9.8 meters per second every second it falls.
* Direction: Acceleration is also a vector quantity, and in this case, it's always pointing downwards, parallel to the Earth's gravitational pull.
Important Note: Air Resistance
The above description assumes no air resistance. In reality, air resistance (also known as drag) will play a significant role. As the object falls faster, the air resistance increases, eventually counteracting the force of gravity. This means:
* Terminal Velocity: The object will eventually reach a constant velocity called terminal velocity. At this point, the force of air resistance equals the force of gravity, and the object stops accelerating.
Summary Table:
| Property | Initial | During Fall | Near Terminal Velocity |
|---|---|---|---|
| Velocity | 0 m/s | Increasing | Constant (terminal velocity) |
| Acceleration | 9.8 m/s² (downwards) | 9.8 m/s² (downwards) | Decreasing towards 0 m/s² |
Let me know if you'd like me to elaborate on any of these points!
