The radius of planet A is half the
radius of planet B. If the mass of A is
M., what must be the mass of B so
that the value of g on B is half that of
its value on A?
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The radius of planet A is half the
radius of planet B. If the mass of A is
M., what must be the mass of B so
that the value of g on B is half that of
its value on A?
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Answer:
body of planet B should be 4 times M
Explanation:
since the value of g= GM/R²
hence
for plant A g=GM/(R/2)²=4GM/R²
and for planet B g=Gm/R²
since the value of g is same for both
4GM/R²=Gm/R²
m=4M
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