Question

If G = 6.66 x 10-11 N m2 kg-2 and radius of earth is
6.73 x 10 to the power 6 m, what is density of earth ? Given g = 9.81
ms -2
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Answer 1

Answer:

Acceleration due to gravity is proportional to mean density of earth, and its radius. G (mM/R²) = mg, or g = G M/R² = 4π/3 G R d. Acceleration due to gravity is proportional to mean density of earth, and its radius.After calculation

we obtain,d=5515.3kg/m^3