Question

Find the value of G from the following data :
M = 6 x 10²⁴ kg, R = 6400 km, g = 9.774 m/s²
(Ans : 6,672 x 10⁻¹¹ Nm² / kg²)

Answer 1

Explanation:

GM = g*R^2

G = g*R^2/M

= 9.774*(6400*10^3)^2/(6*10^24)

G= 6.672*10^-11 Nm^2/kg^2