Hakeem Henson
New member
its construction phase.? Calculate how much fuel will be used if the ISS needs a re-boost and is 90% through its construction phase. The orbit of the ISS is at 300 kilometers and you need to re-boost the station to a 360 kilometer orbit. Use the information given and the following equations, F=ma Force=mass*acceleration) and a=dV/t (acceleration = delta V/ time) to determine the length of the turn needed to lift the ISS to its desired altitude. The delta-V (change) needed to make this orbital maneuver is precisely 23.4696 meters per second (m/s). The station weighs approximately 369,914 kilograms. The combined thrust of the Progress engines that will perform the re-boost is 823.8 Newtons (force). The units for this math problem are kilograms. Hint: First find the acceleration and then take the required delta-V and divide it by the acceleration, in order to get the burn time. To determine the amount of fuel used, multiply by the fuel flow rate of the Progress engines, which is .307 kilograms per second (kg/s).