If the mass of a planet is 0.103 times that of the Earth and its radius is 0.592 times that of the Earth, estimate the gravitational field g at the surface of the planet. The gravitational acceleration on Earth is 9.8 m/s2.

Question

If the mass of a planet is 0.103 times that of the Earth and its radius is 0.592 times that of the Earth, estimate the gravitational field g at the surface of the planet. The gravitational acceleration on Earth is 9.8 m/s2.
Answer in units of m/s2

Chanz · Accepted Answer

m1g = Gm1m2/r^2 so g = Gm/r^2 You can either look up the actual values for Earth's radius and mass or find the factor using .592^2/.103 times g