Question

calculate the average density of the earth in terms of g, G and R. Hint (density - mass\volume) ​

Answer 1

Answer:

G = GM / R²

g = G × (4/3 π R³ ρ) / R²

[∵ M = Volume × Density = (4/3) πR³ × ρ]

g = 4πGρR / 3

ρ = 3g / (4πGR)

Average density of Earth is 3g / (4πGR