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December 18, 2014

Homework Help: Physics

Posted by Kelly on Saturday, June 2, 2012 at 11:52am.

A spring with k = 54 N/cm is initially stretched 1 cm from its equilibrium length.

(a) How much more energy is needed to further stretch the spring to 2 cm beyond its equilibrium length?
(b) From this new position, how much energy is needed to compress the spring to 2 cm shorter than its equilibrium position?

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