(a) The spring constant of the spring is 392 N/m
(b) Length of the spring is 17.5 cm
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<h3>Further explanation</h3>
<em>Hooke's Law states that the length of a spring is directly proportional to the force acting on the spring.</em>

<em>F = Force ( N )</em>
<em>k = Spring Constant ( N/m )</em>
<em>Δx = Extension ( m )</em>
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The formula for finding Young's Modulus is as follows:

<em>E = Young's Modulus ( N/m² )</em>
<em>F = Force ( N )</em>
<em>A = Cross-Sectional Area ( m² )</em>
<em>Δx = Extension ( m )</em>
<em>x = Initial Length ( m )</em>
Let us now tackle the problem !
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<u>Given:</u>
initial length of spring = Lo = 10 cm
mass of object = m = 2.0 kg
extension of the spring = x = 15 - 10 = 5 cm = 0.05 m
mass of second object = m' = 3.0 kg
<u>Asked:</u>
a. spring constant of the spring = k = ?
b. length of spring = L = ?
<u>Solution:</u>
<h3>Part a.</h3>





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<h3>Part b.</h3>





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


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<h3>Learn more</h3>
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<h3>Answer details</h3>
Grade: College
Subject: Physics
Chapter: Elasticity