Question

two planets of raddi R1 and R2 are made up of the same material.the ratio of acceptation due to gravity at the surfaces of the two planets is
A)R1/R2
B)R2/R1
C)(R1/R2)^2
D)(R2/R1)^2​

Answer 1

Step by step explanation:

If those planet are made of same material,

their density must be equal. This means

M1/R1 = M2/R2

Let M1/R1 = M2/R2 = x

Now,

g1 = GM1/(R1)²

= Gx/R1

Similarly,

g2 = GM2/(R2)²

= Gx/R2

Therefore,

g1/g2 = (Gx/R1) ÷ (Gx/R2) = R2/R1

and that's the answer

Hope it helpsz

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Answer 2

Answer:

I don't know...... but the above answer is absolutely correct........