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Spring energy question

  1. Dec 5, 2013 #1
    1. The problem statement, all variables and given/known data

    A 0.10 m spring is stretched from equilibrium position to position A and then to position B as shown in the diagram below. Compared to the spring’s potential energy at A, what is its potential energy at B?

    2. Relevant equations

    PE = 1/2 kx^2

    3. The attempt at a solution

    Having trouble with this one. Is it twice as much or four times as much?
     

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    Last edited: Dec 5, 2013
  2. jcsd
  3. Dec 5, 2013 #2

    PhanthomJay

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    Please retype the problem statement, the question is missing.
    Please fill in section 2 also.
    And state or show how you arrived at your answer.

    Thanks, and welcome to these forums!
     
  4. Dec 5, 2013 #3
    Ooops! thanks
     
  5. Dec 5, 2013 #4

    PhanthomJay

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    In your relevant equation, what is the description of 'x'....what distance is it describing?
     
  6. Dec 5, 2013 #5
    x is the distance the spring is compressed or stretched
     
  7. Dec 5, 2013 #6

    PhanthomJay

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    Ok so in the first part it is stretched a certain distance and in the second part it is stretched double that distance. Since the PE equation includes an x^2 term, if x doubles then the PE must be ___?___ times greater.
     
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