Fuel Rocket
Fuel Rocket
Momentum: How much fuel is burned in a rocket during the first s, when given acceleration. and velocity of gas?
A rocket in space where gravity is negligible has a mass (including gas) of 5000 kg. If you want to give the rocket an average acceleration of 15.0 m / s during the first second of light the gas engine and leave the rocket at 1500 m / s (relating to the rocket), amount of fuel to be burned at that moment?
Frequency = m * A = 5000 * 15 = 75 000 N Fengine = Ve = 1500 m * m * Frequency = Fengine → m = 75000/1500 = 50 kg / s. Therefore, in the first second, 50 kg of fuel should be consumed.
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