If vₑ is escape speed and vₒ is orbital speed for a circular orbit just above Earth’s surface, how are they related?
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If vₑ is escape speed and vₒ is orbital speed for a circular orbit just above Earth’s surface, how are they related?

G1 Physics · Accepted Answer

Step 1: Circular orbital speed is vₒ=√(GM/R); escape speed is vₑ=√(2GM/R). Step 2: Therefore vₑ=√2 vₒ. Source prints equivalent options C and D; option C has been changed to a distinct incorrect relationship for single-correct upload. Final answer: D — vₑ=√2 vₒ.