Parabolic motion requires:
* A constant acceleration due to gravity: This means the object is moving in a uniform gravitational field.
* Negligible air resistance: Air resistance would disrupt the smooth parabolic path.
* An initial velocity that is not purely vertical: If the object is launched straight up or straight down, it will follow a vertical line, not a parabola.
Examples of things that DO NOT exhibit parabolic motion:
* Objects thrown straight up or down: These follow a vertical line.
* Objects moving in a circle: Circular motion has a constant change in direction, not a constant acceleration due to gravity.
* Objects experiencing significant air resistance: Air resistance distorts the parabolic trajectory, making it non-parabolic. Think of a feather falling compared to a rock.
* Objects moving under the influence of forces other than gravity: For example, a rocket engine constantly propelling an object.
Let me know if you'd like more examples or explanations!
