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OpenStudy (anonymous):
A spring has a force constant of 80000 N/m. How far must it be stretched for its potential energy to be 21 J? Answer in units of m.
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OpenStudy (mayankdevnani):
P.E=mgh F=mg
OpenStudy (mayankdevnani):
21=80000*h h=21/80000=0.0002625 m
OpenStudy (anonymous):
So, is the distance 0.0002625?
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