2011-12-07, 04:03 PM
Lozmaster Wrote:Gravitational forces and accelerations are proportional to M/r^2 ,where M is the planet mass and r the planet radius so if it was 2.5 times the size, the planet would have to have around 6.25 as much mass to have the same Gravitational force acting on you.Which would also equate to 40% of the density of Earth.

