calculate the value of g

To calculate the value of g, we should put the values of G, M and R, namely, universal gravitational constant G = 6.7 × 10^-11 N m² kg^-2, mass of the earth, M = 6 × 10²⁴ kg. and radius of the earth, R = 6.4 × 10⁶ m.

g = G M/d²

g = 6.7 × 10^-11 N m² kg^-2 × 6 × 10²⁴ kg/ ( 6.4 × 10⁶ m )²

g = 9.8 m s^-2

Thus, the value of acceleration due to gravity of the earth, g = 9.8 m s^-2.