The force of gravity is proportional to mass, but acceleration due to gravity is constant.
* Force of Gravity: The force of gravity pulling on an object is indeed stronger for heavier objects. This is because the force of gravity is directly proportional to the object's mass. A 2 kg rock experiences twice the gravitational force as a 1 kg rock.
* Acceleration due to Gravity: However, the acceleration due to gravity is constant for all objects near the Earth's surface, regardless of their mass. This means that both the 1 kg and 2 kg rocks will accelerate downwards at approximately 9.8 m/s².
Why it seems like heavier objects fall faster:
* Air Resistance: In reality, air resistance plays a significant role in how objects fall. Lighter objects are more affected by air resistance than heavier objects. This is because air resistance depends on the object's surface area and shape. A feather, for example, experiences a lot of air resistance and falls slowly, while a rock experiences less resistance and falls faster.
* Vacuum Experiments: In a vacuum, where there is no air resistance, objects of different masses will fall at the same rate, demonstrating that the acceleration due to gravity is indeed constant.
In summary:
While a heavier rock experiences a greater gravitational force, the acceleration due to gravity remains the same. It's the presence of air resistance that makes it seem like heavier objects fall faster, but in a vacuum, they would fall at the same rate.
