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MCQIntermediateOrbits, Gravitation & Dynamics
IAAC — 2019 Final Round
Question 11
The second cosmic velocity (or escape velocity) is the speed required by an object to escape the gravitational field of a celestial body with mass M and radius R. Which formula correctly calculates this velocity? (G: gravitational constant)
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Source
Source: International Astronomy and Astrophysics Competition (IAAC), Final Round 2019. Question wording and answer-choice text are transcribed from the official training PDF; the explanation and metadata are original.