An astronaut has drifted too far away from the International Space station (ISS) while on an untethered spacewalk. She realizes that she is moving away from the ISS at 3 m/s. She and her space suit have a mass of 90 kg. On her back is a 10 kg jetpack which consists of a 7.25 kg holding tank filled with 2.75 kg of pressurized gas. She is able to use the gas to propel herself directly towards the station. The gas exits the tank at a uniform rate with a constant velocity of 100 m/s, relative to the tank (and her). a) [10 pts] After the tank has been emptied, what is her velocity