Question

obtain a relation between g snd G

Answer 1

hey...mate here is ur ..answer..:D
since.
F=GMem/Re*2----1
but according to newton's 2 nd law...
F=mg----2
now..from1 and we get..
g=G Me/Re*2

Answer 2

since

F = GMm/r*2

but also F= mg..

so by equating them...

we get g = GM/r*2

Hope it helps...