What is the value of gravitational potential at the surface of the earth, referred to zero potential at infinite distance? Given that the mass of the earth is 6*1024 kg, radius of the earth is 6400 km and G=6.67*10-11 Nm2/kg2 .
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Solution
Dear Student,
Gravitational potential is given as:
V=-GM/r
V=- (6.67 X 10-11 X .6 X 1024 )/ 6400 = 6.65 X 1010 J kg-1