# A force of 0.8 N stretches an elastic spring by 2 cm. Find the force constant.

## Question:

A force of 0.8 N stretches an elastic spring by 2 cm. Find the force constant.

## Spring constant of spring

According to Hooke's law, the variation of spring force with displacement is linear.

F = - k x

Negative sign shows that resisting force is opposite to force applied in the direction of displacement.

## Answer and Explanation:

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

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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.

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