(a) (i) Explain the term the effective exhaust velocity. (ii) Is it greater or smaller than the exhaust velocity? [2 mar

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A I Explain The Term The Effective Exhaust Velocity Ii Is It Greater Or Smaller Than The Exhaust Velocity 2 Mar 1 (129.1 KiB) Viewed 44 times

(a) (i) Explain the term the effective exhaust velocity. (ii) Is it greater or smaller than the exhaust velocity? [2 marks] (b) (i) Calculate the change of velocity, Av, of a spacecraft of mass m and initial velocity v after the ejecting a small mass of propellant Amp with the velocity ve relative the spacecraft. (ii) Passing to infinitesimal Amp, Av and integrating the obtained differential equation, derive Tsialkovky's equation. [2 marks] (c) (i) State two possible definitions of the specific impulse? (ii) Explain the words "specific" and "Impulse" in this term? (iii) Which definition is more often used and why? [3 marks]