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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

    mezarashi

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    Homework Helper

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

    Mk

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    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
     
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