Find the work done by the spring force on a box

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isukatphysics69
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Homework Statement


PHYS.PNG


Homework Equations

The Attempt at a Solution


Wspring = ∫-k*xdx
limits of integration are 12 and 0
So
[0 - .12^2/2]*172 = -1.24J of force
Getting 1.8/2 points for this anser
 

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aw crap my dyslexicia is kicking in
 
i think i mixed the 2 at the end of 12cm and the 175 together
 

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