TO CALCULATE THE VALUE OF g for the Earth

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 =GM/R2
g = (6.7 × 10–11 ) X (6 × 1024 ) / ( 6.4 × 106)2

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

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