Question

As we know that 9.8m/s2 is the earth attraction .Is here is proof so tell me please?​

Answer 1

the proof is

g=GM/R²

where

M=mass of earth

R=radius of earth

G=universal gravitation constant

M=5.972 × 10^24

R=6378.1 km

G= 6.674×10⁻¹¹

Just plug in these values and u would get g

(U can also try Cavendish experiment if u have the apparatus)

Hope this helps.