Question

if the distance of the of an object from the earth surface is D then the acceleration due to gravity is​

Answer 1

Answer:

G*M/(R+D) ^2

Explanation:

g=G M/R^2

So acceleration due to gravity depends upon mass of earth and radius of earth.

But here R will be (R+D)

So, g=GM/(R+D) ^2

Answer 2

Answer:

Given the distance of the object from the earth's surface = D and let 'r' be the radius of the earth

we know, g = GM/R^2 here G = Universal gravitation constant

M= Mass of the earth

R= total distance of the object from the earth's centre.

or, g = GM/(r+D)^2

which is the required value of the 'g'