Question

Compare acceleration due to gravity at h 1600km from surface of at depth 1600km from surface.
gh=gR^2/(R+h)^2
gd=g(1-d/R)
​

Answer 1

Answer

The value of g at a depth d is given by:

g

′

=g(1−

R

d

)=9.81(1−

6400

1600

)=9.81×(

4

3

)=7.35 ms

−2