# A force of 12 lb is required to hold a spring stretched 8 inches beyond its natural length. How...

## Question:

A force of 12 lb is required to hold a spring stretched 8 inches beyond its natural length. How much work W is done in stretching it from its natural length to 13 inches beyond its natural length?

## Spring Constant:

The term spring constant can be defined as the ratio of the force applied on the spring to the per-unit stretching or compression in the spring. The SI unit of spring constant is Newton per meter.

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Given data:

• The given force is {eq}F = 12\,{\rm{lb}} {/eq}
• The spring stretched is {eq}\Delta x = 8\,{\rm{inches}} = \left( {\dfrac{8}{{12}}}... Practice Applying Spring Constant Formulas

from

Chapter 17 / Lesson 11
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In this lesson, you'll have the chance to practice using the spring constant formula. The lesson includes four problems of medium difficulty involving a variety of real-life applications.