The acceleration due to gravity near the earth surface is 9.8 m/s and earthly radius is 6400km from this data .calcate mass of earth use any universal constant it required?
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g=9.8m/s^2, G=6.67×10^-11, Me=mass of earth
g=GMe/r^2=6.67×10^-11×Me/6400×6400
Me=9.8/6.67×10^-11×6400×6400=6×10^24
mass of the earth=6×10^24kg
g=GMe/r^2=6.67×10^-11×Me/6400×6400
Me=9.8/6.67×10^-11×6400×6400=6×10^24
mass of the earth=6×10^24kg
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