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How to find G's

  1. Nov 12, 2009 #1
    This may seem like a really stupid question but i forgot how to find Gravitational force like in a roller coaster problem. I know how to find centripetal acceleration and centripetal force if that even matters but i could use some help please.
     
  2. jcsd
  3. Nov 12, 2009 #2
    G's is the magnitude (in units of the magnitude of sea-level gravitational acceleration) of the vector difference between one's acceleration and free-fall. (This often isn't obvious before considering GR.) It's the multiple that your weight changes by, if you bring on the rollercoaster a bath scale to sit on.
     
    Last edited: Nov 12, 2009
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