Question

the mass of a planet is 4 times that mass of earth and its radius is 3 times that of earth. What is the acceleration of this planet.
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Answer 1

Answer:

Moreover there is change in radius and gravitational force is inversely proportional to the square of the distance. So increase in distance results in decrease in gravitational force. Therefore 4 times the radius of the earth implies 16 times lesser gravitational force than earth.

Explanation:

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