Question

an imaginary planet has a mass 5 times and radius 5 times than that of earth what is the given planet or if on Earth is 10 m/s

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Answer 1

Answer :-

g = G M / R² of earth is 10 .

imaginary planet have mass 5times and radius 5 times .

so , g' = G ( 5M) / (5R)²

g' = 5 G M / 25R²

g ' = GM/ 5 R²

g' = g /5

g' = 10/5

g' = 2 m/s².