The planet Trantor has triple the mass of Earth, but only twice Earth’s radius. Compute the acceleration due to gravity at the surface of Trantor
PHYSICS - drwls, Monday, June 6, 2011 at 7:31am
g is proportional to M/R^2.
Tripling M while doubling R will multiply the Earth value of g by
3/(2^2) = 3/4.
Trantor's g value will be 9.81*(3/4) = 7.36 m/s^2