The highest value of escape velocity in solar system is planet____________________?
Correct answer: C. Jupiter
- A. Earth
- B. Neptune
- C. Jupiter
- D. Moon
Explanation
Escape velocity is vesc = √(2GM/R), so it is greatest for a body with a large mass and relatively small radius. Jupiter has the greatest escape velocity among the listed planets, about 59.5 km/s. Students may choose Earth because it is familiar, but Earth's escape velocity is only about 11.2 km/s.
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