Notices
Results 1 to 2 of 2

Thread: A Challenge for all of us

  1. #1 A Challenge for all of us 
    New Member
    Join Date
    May 2010
    Posts
    2
    A satellite is shot of the earth and must eventually fly around the moon to the unknown planet Mickey

    Information:
    Earth radius 6.378 106 m, mass 5.976 kg 1024.
    Mon, 1.738 106 m radius, mass 0.0735 1024 kg.
    Mickey, 5000 106 m radius, mass 5000 kg 1024.
    Distance Earth - Moon 384.4 106 m
    Distance Earth - Mickey 800 106 m


    To make it a little easier, the Earth, Moon and Mickey are put in one line here is a model that can help you out a little:
    r=sqrt(x^2 + y^2)
    Fgrav=G*ms*Ma/r^2
    Fresx=-Fgrav*x/r
    ax=Fresx/ms
    dvx=ax*dt
    vx=vx+dvx
    dx=vx*dt
    x=x+dx
    Fresy=-Fgrav*y/r
    ay=Fresy/ms
    dvy=ay*dt
    vy=vy+dvy
    dy=vy*dt
    y=y+dy
    Als r<Ra Dan Stop Eindals
    t=t+dt


    G=6,67E-11
    Ma=6,0E24
    Ra=6,4E6
    ms=1,0E3
    dt=10
    t=0
    x=0
    y=1,0E7
    vx=6,5E3
    vy=0

    THESE CHALLENGES CAN BE COMPLETED WITH COACH MODELLING
    1: Modify this model so that the satellite is shot from the earth in a circuit around the earth
    2. Modify the model so that the Moon is included in the model. Try to get the satellite in an orbit around the Moon.
    3. Modify the model so that Mickey is included in the numerical model. Try to get the satellite to land on Mickey. Give the orbit of the satellite back into an xy chart.
    4. For try hards: is it possible to get the satellite in an orbit around Mickey?

    [/url]


    Reply With Quote  
     

  2.  
     

  3. #2  
    New Member
    Join Date
    May 2010
    Posts
    2
    succes, I tried but failed
    I hope you can succeed

    PS I'm from holland so dont' mind the bad grammar


    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •