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Question
If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by
Options:
A .  [2(V₀/V₁)]/ [1 + (V₀/V₁)²]
B .  (V₀/V₁)/ [1 + (V₀/V₁)²]
C .  V₀/(V₀ + V₁)
D .  V₁/(V₀ + V₁)
Answer: Option A

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