04 Jan For the spacecraft and the two-stage launching roc
For the spacecraft and the two-stage launching rocket of Prob. 14.98, determine the altitude at which (a) stage A of the rocket is released, (b) the fuel of both stages has been consumed.Prob. 14.98, The rocket used to launch the 540-kg spacecraft of Prob. 14.97 is redesigned to include two stages A and B, each of mass 9.5 Mg, including 8.9 Mg of fuel. The fuel is again consumed at a rate of 225 kg/s and ejected with a relative velocity of 3600 m/s. Knowing that when stage A expels its last particle of fuel, its casing is released and jettisoned, determine (a) the speed of the rocket at that instant, (b) the maximum speed imparted to the spacecraft.
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