Situation 2 Lost in Space : A 65-kg astronaut is in space, far from any objects
ID: 2109313 • Letter: S
Question
Situation 2 Lost in Space: A 65-kg astronaut is in space, far from any objects that would exert significant gravitational force on her. She would like to move to her spaceship, her jetpack is not functioning. She decides to throw objects in the direction opposite of that she wishes to move. (note: you may ignore the slight changes in mass jettisoning these objects has on the astronaut’s overall mass.)<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
2. She throws a 2.0-kg socket wrench at a speed of 5.0 m/s. Her speed is given by:
a. 0.15 m/s
b. 0.38 m/s
c. 0.86 m/s
d. none of these
3. She then throws a 3.0-kg hammer at a speed of 4.8m/s. Her speed is now given by:
a. 0.15 m/s
b. 0.38 m/s
c. 0.86 m/s
d. none of these
Explanation / Answer
c.  0.86 m/s
a.  0.15 m/s