Gravitational acceleration is independent of mass due to the equivalence of inertial and gravitational mass, which is a principle observed in both Newtonian physics and General Relativity (GR). In Newtonian mechanics, all objects fall at the same rate regardless of their mass, while GR explains this phenomenon as objects moving along geodesics in curved spacetime, rather than being acted upon by a force. The discussion highlights that while Newton's laws describe this behavior, they do not provide a fundamental explanation for why it occurs; it is simply an observed fact. In contrast, GR offers a deeper understanding by showing that gravity is not a force but a result of spacetime curvature. Ultimately, both theories yield identical predictions for free-falling objects, affirming that all bodies experience the same gravitational acceleration.