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No. It decreases with altitude. The acceleration due to gravity is inversly proportional to the square of the distance from the center of the earth. The radius of the Earth is about 6 million meters so you would have to go 100000 m (about 60 miles) up before you saw much of a difference. I think that would give you about 10% decrease. So instead of 9.8 m/ss it would be more like 9 m/ss. That's an estimate. I think I overestimated the decrease in acceleration due to gravity at 100Km up. It looks like its more like 9.5 m/ss rather than 9 m/ss. Since g is proportional to inverse distance from center of earth, squared you can use ratio & proportion as; g/R^2 = g0/R0^2 g = g0 x (R0/R)^2 Where g0 is acceleration at R0 (9.8 at earth's radius 6.37 Million M) and g is acceleration at larger distance R = 6.47 Million M (adding .1 Million M to Earth's radius. g = 9.8 x (6.37/6.47)^2 = 9.8 x .97 = 9.5 m/ss

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