本题目来源于试卷: Fields D.1 Gravitational Fields & Potential ，类别为 IB物理学
[单选题]
Satellite $A$ of mass $M$ orbits a planet with an orbital speed $v$ and orbital radius $R$. Another satellite $B$ with mass $3M$ orbits the same planet with the same orbital speed.
Knowing that the ratio $\frac{Centripetal force of satellite A}{entripetal force of satellite B}\,=\,\frac{1}{3}$, what is the orbital radius of satellite $B$?
A. $\frac{1}{2}R$
B. $\frac{2}{3}R$
C. $R$
D. $\frac{3}{2}R$
参考答案: C
本题详细解析:
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