Here's why:
* Gravity is a constant force: The force of gravity pulls all objects towards the Earth's center with the same acceleration, regardless of their mass or composition.
* Air resistance: While a cotton ball experiences air resistance, this force doesn't affect the acceleration due to gravity itself. It only slows down the cotton ball's *overall* descent.
In conclusion, the acceleration due to gravity for a cotton ball is the same as for any other object on Earth, even though its descent might appear slower due to air resistance.
