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Acceleration of Space ship with thrust

  1. Dec 4, 2012 #1

    mtv

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    New to the forum looking for Acceleration of Space ship with thrust

    The first stage of a space vehicle consumed fuel and oxidizer at the rate of 1.90 104 kg/s with an exhaust speed of 3.45 *10^3 m/s.


    (a) Calculate the thrust produced by this engine.
    I got 65550000 N this answer was correct.


    (b) Find the acceleration the vehicle had just as it lifted off the launch pad on the Earth, taking the vehicle's initial mass as 3.00* 10^6 kg.
    But im stuck on this question
     
    Last edited: Dec 4, 2012
  2. jcsd
  3. Dec 4, 2012 #2

    gneill

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    Staff: Mentor

    Re: New to the forum looking for Acceleration of Space ship with thrust

    Be sure to take into account all the forces that are acting on the vehicle. Draw a free body diagram for the instant of launch.
     
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