Acceleration due to gravity on the surface of earth is $g$. If the diameter of earth is reduced to one third of its original value and mass remains unchanged, then the acceleration due to gravity on the surface of the earth is ...... g.

Question

Dr. Abubacker · Accepted Answer

[Solution by Dr. Abubacker] $g=\frac{GM}{R^2}\propto\frac1{R^2}$. With $R	o\frac R3$, $g'=9g$. Answer: 9.

Q. Acceleration due to gravity on the surface of earth is $g$. If the diameter of earth is reduced to one third of its original value and mass remains unchanged, then the acceleration due to gravity on the surface of the earth is ...... g.

Explanation

Reviewed by Dr. Abubacker

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