What is the acceleration due to gravity 9000000 meters away from the center of the earth?

Answer 1

If you have a known rate of acceleration and radius (such as at the earths surface), you can use the following equation to calculate the acceleration at another radius.

a = k / ((d / r)^2)

key:

a = new acceleration rate ((m/s)/s)

d = new radius (metres)

k = known acceleration rate ((m/s)/s)

r = known radius (metres)

so if:

d = 9 000 000 metres

k = 9.82 (m/s)/s (acceleration at earths surface)

r = 6 371 000 metres (radius at earths surface)

then:

a = 4.92 (m/s)/s

Answer 2

The acceleration due to gravity is inversely proportional to the square of the distance from the center of the Earth. At 9000000 meters away, the acceleration due to gravity would be significantly weaker compared to the value on the surface of the Earth, but it would still be present.