Homework Help: potential energy

Posted by henry287 on Sunday, February 27, 2011 at 2:13pm.

An ideal spring has a spring constant k = 20.0 N/m. What is the amount of work that must be done to stretch the spring 0.70 m from its relaxed length?

potential energy - drwls, Sunday, February 27, 2011 at 2:17pm
(1/2)k X^2

X is the amount of stretch

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