A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
n astronaut having mass 320 kg with equipment included is attempting an untethered space walk. The astronaut is initially at rest with respect to the nearby spacecraft, but discharges 30.0 g of nitrogen gas at 900.0 m/s from a portable propulsion unit. How fast is the astronaut moving after doing that?
0.36 m/s, 0.084 m/s , 27 m/s, or 84 m/s
?? :/
anonymous
 one year ago
n astronaut having mass 320 kg with equipment included is attempting an untethered space walk. The astronaut is initially at rest with respect to the nearby spacecraft, but discharges 30.0 g of nitrogen gas at 900.0 m/s from a portable propulsion unit. How fast is the astronaut moving after doing that? 0.36 m/s, 0.084 m/s , 27 m/s, or 84 m/s ?? :/

This Question is Closed

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2here we have to apply the momentum conservation law

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2so we can write this: \[P = 0.03 \times 900 = ...\] is the momentum of the gas discharged

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2oops..discharged gas

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2the momentum gained by our astronaut is: \[P' = 320 \times V\] where V is his velocity

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2so we can write: \[27 = 320 \times V\] what is V?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.00.984375? so our solution is 0.084 m/s ?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2\[V = \frac{{27}}{{320}} = {\text{0}}{\text{.084375}}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so is that our final solution? :O
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.