Question

the mass of earth is 6×10^24kgand it's radius is 6400km.Find the acceleration due to gravity on the surface​

Answer 1

we know that

g=GM

R^2

so putting vale of G gravitational constant = 6.23 ×10^-11 and M =6×10^24 kg and R=6400km

we got g=(6.23×10^-11)(6×10^24)

(6400km)^2

g=(6.23×10^-11)(6×10^24)

(6400×1000)^2

after solving g=9.8m/s^2

so,value acceleration due to gravity is 9.8 m/s^2