# Homework Help: Spring energy question

1. Dec 5, 2013

### tourniquet63

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. Dec 5, 2013

### PhanthomJay

Please retype the problem statement, the question is missing.
Please fill in section 2 also.

Thanks, and welcome to these forums!

3. Dec 5, 2013

### tourniquet63

Ooops! thanks

4. Dec 5, 2013

### PhanthomJay

In your relevant equation, what is the description of 'x'....what distance is it describing?

5. Dec 5, 2013

### tourniquet63

x is the distance the spring is compressed or stretched

6. Dec 5, 2013

### PhanthomJay

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.