Question

The mass of the earth if 6×10^24 kg and radius of the moon is 1.7×10^6m. Calculatethe acceleration due to gravity of the new earth which is formed by the compression of earth equal to size of the moon.
Ans. 138.48m/s
please help me.
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Answer 1

Explanation:

m = 6 x10²⁴ kg

r =1.7 x 10⁶ m

g=GM / r²

g= 6.67x 10⁻¹¹x 6 x10²⁴ kg / 1.7 x 10⁶ x 1.7 x 10⁶

g=13.84 x 10

g = 138.4 m/s²

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