What force does earth's gravity exerts on a 81-kg astronaut who is orbiting in a space station at a distance from the SURFACE of the earth equal to 2 earth radii? Show your calculations.Your answer must be in newtons help !

Question

anonymous · Answer

F=GMm/R

anonymous · Answer

G is the universal gravitational constant
G = 6.6726 x 10-11N-m2/kg2

anonymous · Answer

M- mass of earth
m- mass of astranaut
R-radius of earth/ or just a distance of two objects, here it is 2 times of earth radius

jfraser · Answer

^ the astronaut is 2 earth radii from the SURFACE, so his distance is really 3x the earth's radius

anonymous · Answer

thank u guys so much :)