# A Spring (k=790 N/m) has a length of 48 cm when zero net force is applied to it. What will its...

## Question:

A Spring ({eq}k=790 \ N/m {/eq}) has a length of {eq}48 \ cm {/eq} when zero net force is applied to it.

What will its length be when {eq}230 \ N {/eq} of force is applied to stretch it?

## Hooke's Law:

The applied force of an ideal sping is the product of the spring constant and the displacement of the spring from its unstrained length. The restoring force is the negative of the applied force, which is a reaction force based on Newton's third law.

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According to Hooke's law, the applied force F is

{eq}F=kx\\ \rm Here:\\ \,\,\,\, \, \bullet \,k(=780\, N) \text{: spring constant}\\ \,\,\,\, \,...

Hooke's Law & the Spring Constant: Definition & Equation

from

Chapter 4 / Lesson 19
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After watching this video, you will be able to explain what Hooke's Law is and use the equation for Hooke's Law to solve problems. A short quiz will follow.