Translations:Adventist Youth Honors Answer Book/Health and Science/Physics/150/en
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- G is constant, the Mass of earth [math]\displaystyle{ M_e }[/math] is constant, and near the surface of the earth, the distance from the center of the earth does not change much, so [math]\displaystyle{ r^2 }[/math] is almost a constant. This means that a is equal to a constant. We call this constant the acceleration of gravity near the surface of the Earth and represent it with the symbol g = 9.8M/[math]\displaystyle{ sec^2 }[/math].
