uniform gravitational force

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A gravitational force, acting on a particular body, that is independent of the position of the body. The gravitational force on a body in a limited region near the surface of a planet is approximately uniform.

For example, the gravitational force acting on a particle of mass m near the Earth's surface, assumed to be a horizontal plane, can be taken to be −mgk, where k is a unit vector directed vertically upwards and g is the magnitude of the acceleration due to gravity.

Subjects: Mathematics.

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