​ ••••••••eq1

\boxed{F = GMm/d²}F=GMm/d²​ ••••eq2

where ,

F = the force of gravity (Fgrav) with which an object of mass m was attracted to the earth

d = distance from the center of the object to the center of the earth.

M = mass of earth

G = universal gravitational constant

g = acceleration due to gravity

substitute both eq1 and eq2 ,we get

m*g = GMm/d²

\boxed{g = GM/d²}g=GM/d²​

g = [(6.673×10^-11N-m²)×(5.98×10²⁴kg)] /(6.38×10⁶m)²

g = 9.8 m/s²

hope it helps you...

This trick is very useful for finding square root👆👍

Please join my channel @garg_tutorials

Discussion group @gargtutorialsdiscussion

Please add your friends

https://youtu.be/gZzwsS8APUI

Short trick

If you want 95+ marks in maths then join my sample papers series sara revision ho jayega and speed bhi increase hogi. Sabhi sample papers new pattern per hai class will be at 8.30 pm

https://youtu.be/BP9zz2E5oxg