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Homework Help: Given position and velocity, find acceleration

  1. Apr 30, 2012 #1
    1. The problem statement, all variables and given/known data

    An airplane has a constant acceleration while moving down the runway from rest.
    What is the acceleration of the plane if it requires 800 ft. of runway before lifting o
    at 100 ft./sec.?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Apr 30, 2012 #2


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    Homework Helper

    You have to post your attempt. Start with the equation of motion that's most relevant here.
  4. Apr 30, 2012 #3
    sorry, wrong section its for a calculus class and we have to solve by integration and Im not sure where to start.
  5. Apr 30, 2012 #4


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    Homework Helper

    OK, then, start by writing down the relationship between acceleration, velocity and time in differential form.

    Then apply Chain Rule to bring displacement into there somewhere. There's more to do, but why don't you start with this?
  6. Apr 30, 2012 #5


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    Science Advisor

    You are expected to know that velocity is the derivative of position with respect to time and acceleration is the derivative of velocity.
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