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It takes 7.9 J of work to stretch a spring 4.6 cm from its unstressed length. How much (in J)...

Question:

It takes 7.9 J of work to stretch a spring 4.6 cm from its unstressed length. How much (in J) spring potential energy is then stored by the spring?

Spring Potential energy

When spring is displaced that is either compressed or stretched then the work done required to displace it gets converted into the spring potential energy. According to the energy conservation the work done will be equal to the potential energy.

Answer and Explanation:

Given

Work done for stretching (W) = 7.9 J

Now, from energy conservation,

the energy stored in the spring would be

{eq}E = W \\ E = 7.9 \ J {/eq}


Learn more about this topic:

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Energy Conservation and Energy Efficiency: Examples and Differences

from Geography 101: Human & Cultural Geography

Chapter 13 / Lesson 9
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