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Conservation of Momentum homework help

  1. Nov 23, 2009 #1
    1. The problem statement, all variables and given/known data
    A 93 kg astronaut and a 1500 kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.16 m/s directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with the shuttle. What was the initial distance from the shuttle to the astronaut?


    2. Relevant equations
    [tex]\sum[/tex]F= [tex]\Delta[/tex]p/[tex]\Delta[/tex]t

    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Nov 23, 2009 #2
    You can use the conservation of momentum Pi=Pf when there are no external forces to find the velocity of the astronaut. Then use speed=distance/time to find the distance.
     
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