Two Planets Have the Same Free-Fall Acceleration on the Surface,but $\sqrt { 2 }$

question 73

Multiple Choice

Two planets have the same free-fall acceleration on the surface,but planet B has twice the radius of planet A.If planet A has mass m,what is the mass of planet B?

• A)m/ \(\sqrt { 2 }\)
• B)m
• C)m \(\sqrt { 2 }\)
• D)4m
• E)m/4

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