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Finding the maximum height of a rocket

  1. Jan 29, 2005 #1
    A rocket, initially at rest on the ground, accelerates straight upward from rest with constant net acceleration a, until time t_1, when the fuel is exhausted.

    Find the maximum height H that the rocket reaches (neglecting air resistance).
    Express the maximum height in terms of a, t_1, and/or g. Note that in this problem, g is a positive number equal to the magnitude of the acceleration due to gravity.

    my answer is:
    (at)^2/2g +1/2at^2

    is that correct yet?
     
    Last edited: Jan 29, 2005
  2. jcsd
  3. Jan 29, 2005 #2
    Your equation only shows the distance as far as when the fuel is gone. A rocket's path is a parabola.. when it shoots up and then runs out of fuel, it will go up a little more and then start to fall.
     
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