本题目来源于试卷: Fields D.1 Gravitational Fields & Potential ，类别为 IB物理学
[单选题]
Satellites $A$ and $B$ orbit the same planet of mass $M$. Satellite $A$ has a mass of $3\,m$ and it is located at a height of $R$ from the surface of the planet. Satellite $B$ has a mass of $m$ and it is located at a height of $2R$ from the surface of the planet.
What is the ratio of the centripetal force acting on $A$ to the centripetal force acting on $B$?
A. $\frac{27}{4}$
B. $\frac{4}{27}$
C. 6
D. 12
参考答案: A
本题详细解析:
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