AP EAPCET 19-Aug-2021 Shift 1 Paper

Given, let the radius of earth =R
Height above earth, H=

R

20

Acceleration due to gravity at H,gH=9ms−2
Acceleration due to gravity on the surface of earth,
g=10ms−2
Acceleration due to graviry at depth d from the surface of earth,
gA=g(1−

d

R

)
⇒gd=10(1−

R

20×R

)=10(

19

20

)=9.5ms−2