if mass of planet double and radius becomes half. what is effect on gravity acceleration on the surface of planet.
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The gravitational acceleration would be halved. Gravity of said planet starts as A. As A is proportional to M and inversely proportional to r*r, then A'=1/2A. At what height above the surface will the acceleration due to gravity be one fourth of its value on the surface of the earth?
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Explanation:
mass is doubled
radius is halves
force become 4 times
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