weak equivalence principle

The weak equivalence principle states that in a gravitational field, all objects fall at the same rate regardless of their mass or composition, when other forces are negligible. This means that if you drop two objects, say a feather and a hammer, they will hit the ground simultaneously if air resistance is eliminated. Essentially, gravity accelerates all objects equally, demonstrating that gravitational mass (how an object responds to gravity) and inertial mass (how an object resists changes in motion) are proportional. This principle is fundamental to Einstein’s theory of general relativity and our understanding of gravity.