Question

The mass and diameter of a planet are twice the value of the corresponding parameters of earth. Acceleration due to gravity on the surface of the planet is

Answer 1

Answer:

g₁ = GM / R²                      [ for the earth ]

g₂ = G×2M / 4R²                [ for the planet ]

  = GM / 2R²

g₁ : g₂ = 2 : 1                                [ after simplifying ]

The acceleration due to gravity of the second planet would be half of that of the earth .

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