The Scenario
If gravity is the only force acting on an object, that object will experience freefall. This means it will accelerate towards the center of the gravitational field.
What Happens in Freefall
* Acceleration: The object will accelerate at a constant rate, known as the acceleration due to gravity (approximately 9.8 m/s² on Earth). This means its velocity will increase by 9.8 meters per second every second.
* Path: The object's path will be a parabola (ignoring air resistance). This is the classic trajectory of a projectile.
* Weightlessness: While the object is accelerating due to gravity, it will feel weightless. This is because there's no apparent force pushing back against it.
* Air Resistance: In reality, air resistance is almost always present. This force opposes the object's motion and can significantly alter its trajectory, especially for objects with a large surface area or low density.
Examples
* A falling apple: The apple accelerates towards the Earth due to gravity.
* A spacecraft in orbit: The spacecraft is in freefall around the Earth, constantly falling towards the planet but moving fast enough horizontally to miss hitting it.
Let me know if you want to explore specific aspects of freefall or have other physics questions!
