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Rocket launch that produces a certain g-force

  1. Jan 1, 2009 #1
    How do you calculate the period during rocket launch that produces a certain g-force? Is there a formula to work this out?
    Last edited by a moderator: Mar 7, 2013
  2. jcsd
  3. Jan 1, 2009 #2
    Re: G-Force

    My apologies HallsofIvy. I've been experiencing ISP issues and getting bumped repeatedly, so I typed up what I thought may have been the "quick and easy" explanation, posted it, and didn't have a chance to thoroughly recheck it before I got bumped again. It took me the last 20 minutes or so just to get reconnected.
    Last edited: Jan 1, 2009
  4. Jan 1, 2009 #3
    Re: G-Force

    It will depend on each specific situation. One g of acceleration is about 9.8 meters per second per second. 9.8[tex]m/s^2[/tex]

    So at the point in the launch the rockets speed is changing by 9.8[tex]m/s^2[/tex] the craft is experiencing one g over and above the acceleration due to gravity.
  5. Jan 1, 2009 #4


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    Re: G-Force

    ??? G force has nothing to do with velocity- it depends on acceleration. Was that just a repeated misprint? (Referring to Gnosis' post.) The formula should be (a/g)+ 1, not (v/g)+ 1. That is, you feel your normal weight due to gravity plus an additional "weight" due to the force causing the acceleration.
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