Aerospace Engineering > GATE 2019 > Rocket Propulsion
The specific impulse of a rocket engine is 3000 Ns/kg. The mass of the rocket at burnout is 1000 kg. The propellant consumed in the process is 720 kg. Assume all factors contributing to velocity loss to be negligible. The change in vehicle velocity Δu is _______ km/s (round off to 2 decimal places).
Correct : 1.60 to 1.65
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