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Launch speed

  1. Jul 22, 2004 #1
    Does anyone know the formula to find launch speed?
     
  2. jcsd
  3. Jul 22, 2004 #2

    arildno

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    Launch in order to do accomplish what?
     
  4. Jul 22, 2004 #3
    im sorry i think i got it.

    its of a projectile that rises vertically above the earth to an altitude equal to one earth radius

    is it:
    square root of: (Universal gravitational constant of earth) x (mass of earth) all divided by Radius of earth?
     
  5. Jul 22, 2004 #4
    [tex]
    v_{orbit}=\sqrt{\frac{Gm}{r}}
    [/tex]

    Where G is universal gravitational constant, m is mass of orbiting body, and r is radius between bodies.
     
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