(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

http://img205.imageshack.us/img205/7536/capturebb.jpg [Broken]

i am stuck on part c

how do i find work with out using the spring constant

2. Relevant equations

work equals force parallel times displacement at which the force is acted during...

Work done by spring = .5 kx^2

Work = delta K

but delta K = 0 because the table top is frictionless

Work = delta U

delta U = 0 in this situation correct?

3. The attempt at a solution

so I'm stuck...

i think it might be zero but .5 kx^2 would not give zero now would it...

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# Homework Help: Work done by a spring

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