Question

Planet Venus has radius one half of the earth and mass 1/9th of the earth. Find the value
of g on the surface of Venus. (given, value of g on surface of earth = 9.8m/s2
)

Answer 1

Answer:

    gₓ = 4.35m/s²

Explanation:

g = GM / R²

Radius of venus - Rₓ = R/2

Mass of Venus - Mₓ = M/9

Acceleration due to gravity on venus - gₓ

gₓ =  GMₓ / Rₓ²

gₓ =  GM/9 /  (R/2)²

gₓ =  GM/9 /  R²/4

gₓ =  G4M / 9R²

gₓ =  4/9.GM / R²

gₓ =  4/9g

gₓ = 4 × 9.8 / 9

gₓ = 4.35m/s²