1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Find final speed of the astronaut after throwing the tank

  1. Dec 1, 2005 #1
    A 64.1 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 11.0 kg oxygen tank in a direction away from the shuttle with a speed of 11.7 m/s propelling the astronaut back to the shuttle. Assuming the astronaut starts from rest, find final speed of the astronaut after throwing the tank. Answer in units of m/s
  2. jcsd
  3. Dec 1, 2005 #2


    User Avatar
    Homework Helper

    What principle do you think you should apply?
  4. Dec 1, 2005 #3


    User Avatar

    Damn that's fast! Are you sure its not like 1.17 m/s or is the question just stupid? :biggrin:
  5. Dec 4, 2005 #4
    :rolleyes: ok here you go

    use: Conservation of momentum

    mass of oxygen tank X speed of oxygen tank = mass of astronaut X speed of astronaut
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook