ok, maybe i am missing something here with this problem and it is probably really simple, but here it is:(adsbygoogle = window.adsbygoogle || []).push({});

A force of 775N stretches a certain spring a distance of 0.200m. What is the potential energy of the spring when a mass of 65.0kg hangs vertically from it?

I have tried conservation of energy laws, figuring that the total potential energy of the system is elastic energy + grav. potential energy. I have tried equatng gravtational potential energy to elastic potential energy, which has gotten me nowhere.

My first step was to find k, the spring constant, which I got to be 3875 using Hooke's Law. Yet, the biggest problem I am having is trying to calculate the distance the spring will stretch with this mass. .2 m is not correct because the spring should have a longer distance due to gravity. Hence, i was trying to equate grav. potential energy and elastic potential energy.

I think I am just completely missing something or misinterpreting the problem.

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# Homework Help: Crazy spring problem

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