Why is it assumed that a gravitational field exists all around the earth?
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A gravitational field is a model used to explain the influence that a massive body extends into the space around itself producing a force on another massive body.. In its original concept, gravity was a force between point masses.
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Earth attracts a body with a force equal to its weight.It is assumed that a gravitational field exists all around the Earth due to the gravitational force of attraction of Earth.
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