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Gravitational mass is a fundamental property of an object that quantifies the amount of matter it contains and measures its inertia. This mass remains constant regardless of location, as it is not affected by external factors like gravity.1

Newton's law of gravitation states that any two particles of matter attract each other with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them: (F = G(m_1m_2)/R^2). The equivalence principle in physics suggests that gravitational and inertial forces are similar and often indistinguishable. In Einstein's theory of general relativity, the curvature of spacetime is related to the distribution of matter, and particles travel along the shortest paths in this four-dimensional continuum. Gravitational mass is determined by the strength of the gravitational force an object experiences in a gravitational field.234

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