# Answer on Mechanics | Relativity Question for mike

Question #1152

The Earth has a mass of 5.98 x 10^24 kg and its mean radius is 6.37 x 10^6 m. Using these values, calculate the acceleration due to gravity at the surface of the Earth.

Expert's answer

We can calculate the gravity acceleration as

a = GM/R

a = GM/R

^{2}= 6.67x10^{-11}* 5.98x10^{24}/( 6.37x 10^{6})^{2}= 9.82 m/s^{2}.Need a fast expert's response?

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