A 115 kg astronaut is floating at rest relative to her spacecraft in deep space. She throws an 18 kg toolkit at 4.6 m/s away from the spacecraft.
(a) What is the total initial momentum of the spacecraft-astronaut system?
(b) What is the total final momentum of the spacecraft-astronaut system?
(c) What is the astronaut’s recoil velocity after she threw the tool kit?
