72.3k views
4 votes
What would be the acceleration of gravity of a planet with four times the mass of Earth but twice the radius?

1 Answer

1 vote

-- Multiplying the mass by 4 multiplies the acceleration of gravity by 4 .

-- Doubling the radius multiplies the acceleration of gravity by (1/2²) = 1/4 .

-- Doing both multiplies the acceleration of gravity by (4 / 4) = 1 .

It doesn't change. The acceleration of gravity on that planet
would be the same as it is on Earth.

User Nahelm
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.