Newton and Einstein believe that the factor directly affects gravity is (a) the mass of objects.
Factor affects gravity:
The force that pulls items toward the center of a planet or other entity is called gravity. As we know gravity is a type of force that is mainly affected by the mass of the object and the distance between the objects. The object which has more mass will have large gravity and a smaller mass has small gravity and when the distance between the objects is smaller then the gravity is larger. Thus, the gravity is directly proportional to the mass of the objects and the inversely proportional to the distance between the objects.
Both Newton and Einstein believe that the gravity directly dependent on the mass of the objects.
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