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nisa
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 !
G is the universal gravitational constant G = 6.6726 x 10-11N-m2/kg2
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
^ the astronaut is 2 earth radii from the SURFACE, so his distance is really 3x the earth's radius