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Springs - A compressed spring that obeys Hooke's law: find the distance by which a spring is compressed

A compressed spring that obeys Hooke's law has a potential energy of 18J. If the spring constant of the spring is 400N/m, find the distance by which the spring is compressed.

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Solution. Assume that the amount of compression is x. Then the potential energy E is ...

Solution Summary

In six lines of computations, the problem is solved.

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