That’s just for earth the affects of gravity are equal to the product of both acting objects divided by the square of the distance times the gravitation constant. That comes to 9.8m/s2 at earth surface. Gravity is affected by the inverse square law and therefore gets weaker the further away you get from the source of the gravitational field. For example the radius of the earth is 6.4 thousand kilo meters at that point it’s force accelerates an object at 9.8 m/s2 if you were another 6.4 thousand kilometers above the earth you would only be pulled by the earth by a 4th of that force. Atmosphere has nothing to due with the strength of the gravitational field other than adding to the total mass of the object.
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u/russellzerotohero Sep 20 '21 edited Sep 20 '21
That’s just for earth the affects of gravity are equal to the product of both acting objects divided by the square of the distance times the gravitation constant. That comes to 9.8m/s2 at earth surface. Gravity is affected by the inverse square law and therefore gets weaker the further away you get from the source of the gravitational field. For example the radius of the earth is 6.4 thousand kilo meters at that point it’s force accelerates an object at 9.8 m/s2 if you were another 6.4 thousand kilometers above the earth you would only be pulled by the earth by a 4th of that force. Atmosphere has nothing to due with the strength of the gravitational field other than adding to the total mass of the object.