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Velocity and distance

  1. Oct 23, 2008 #1
    1. The problem statement, all variables and given/known data
    A plane lands with a velocity of 111.1 m /s and accelerates at a maximum rate of -6.8 m/s^2
    Fom the instant the plane touches the runway, what is the minimum time needed before it can come to rest.
    Part 2 the plane is landing on a naval aircraft carrier that is 0.80km long. What distance does the plane require to land answer in units of km.


    Ok i managed to get the first part using t = Vf-Vi /a. Which is 16.33sec

    Now the second part i know i got to change km to m but i cant figure out what else to do.
    Can someone help me
  2. jcsd
  3. Oct 23, 2008 #2


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    Homework Helper

    You need to use a kinematic equation that involves distance. You know everything you need to solve for it.
  4. Oct 23, 2008 #3
    WOOT!!!! Nice i got d=Vit+1/2a(t)^2
    0.90km gracias mate
  5. Oct 23, 2008 #4


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    Homework Helper

    You're welcome :smile:
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