An astronant lands on a spherical asteroid with a diameter of 1200km and a mass of 1.23x10^34kg.what

题目

An astronant lands on a spherical asteroid with a diameter of 1200km and a mass of 1.23x10^34kg.what is the acceleration due to gravity on this asteroid?

答案

g = GM/r^2 = 6.67×10^(-11)N•m^2/kg^2 * 1.23x10^34kg / (6 * 10^5)^2
= 2.279*10^12 M/S^2
吓人吧.
这个星体的密度比地球大10^10倍...