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Homework Help: Acceleration of a plane and the g-force

  1. Sep 13, 2011 #1
    Acceleration of a plane and the "g-force"

    1. The problem statement, all variables and given/known data
    Steam catapults are used to launch aircraft. During the launch of a F/A-18 jet (mass: 16,770 kg) the catapult accelerates from 0 to 250 km/hr within 76m of deck length. Calculate the force produced by the catapult, the acceleration of the plane, and the Ek of the plane as it leaves the deck. What is the "g-force" on the pilot?

    2. Relevant equations
    Ek = 1/2 mv^2

    3. The attempt at a solution
    i have no clue how to even start this problem, sorry :l
  2. jcsd
  3. Sep 13, 2011 #2


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    Re: Acceleration of a plane and the "g-force"

    Welcome to Physics Forums.
    It is probably easier to work backwards for this problem. Can you start by working out the kinetic energy of the plane as it leaves the deck as well as its initial kinetic energy? How is this change in kinetic energy related to the work done?
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