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As per your syllabus, eqn 7.32, the escape speed can also be written using g and R as which?
A√(g / R)
B√(2 g R)
C√(g R)
D2 √(g R)
Answer & Solution
Correct answer: B. √(2 g R)
syllabus eqn 7.32: since g = GM/R², v_escape = √(2gR).
**Same value:** 11.2 km/s for Earth.
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