# An elastic material has a length of 36\ \mathrm{cm} when a load of 40\ \mathrm{N} is hung on it...

## Question:

An elastic material has a length of {eq}36\ \mathrm{cm} {/eq} when a load of {eq}40\ \mathrm{N} {/eq} is hung on it and a length of {eq}45\ \mathrm{cm} {/eq} when a load of {eq}60\ \mathrm{N} {/eq} is hung on it. Find the original length of spring.

## Restoring Force:

Restoring force of a spring is the force exerted by the spring in order to oppose the action force which is applied in order to compress or stretch the spring and the restoring force is dependent on the spring constant and the displacement of the spring from its initial position.

## Answer and Explanation:

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View this answer**Given**

Case 1: When the force applied to the spring is 40 N, the length of spring is {eq}36\ cm {/eq}

Case 2; When the force applied to the spring...

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Chapter 17 / Lesson 11In 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.