If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

A) $$\frac{{2\left( {\frac{{{{\text{V}}_0}}}{{{{\text{V}}_1}}}} \right)}}{{1 + {{\left( {\frac{{{{\text{V}}_0}}}{{{{\text{V}}_1}}}} \right)}^2}}}$$ B) $$\frac{{\frac{{{{\text{V}}_0}}}{{{{\text{V}}_1}}}}}{{1 + {{\left( {\frac{{{{\text{V}}_0}}}{{{{\text{V}}_1}}}} \right)}^2}}}$$ C) $$\frac{{{{\text{V}}_0}}}{{{{\text{V}}_0} + {{\text{V}}_1}}}$$ D) $$\frac{{{{\text{V}}_1}}}{{{{\text{V}}_0} + {{\text{V}}_1}}}$$

Answer & Solution

Correct Answer: Option A

If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by $$\frac{{2\left( {\frac{{{{\text{V}}_0}}}{{{{\text{V}}_1}}}} \right)}}{{1 + {{\left( {\frac{{{{\text{V}}_0}}}{{{{\text{V}}_1}}}} \right)}^2}}}$$

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If V1 is the jet velocity and V0 is the vehicle...

If V1 is the jet velocity and V0 is the vehicle velocity, then the propulsive efficiency of a rocket is given by

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If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by