## What is the Value of the Spring Constant?

**You need to make a spring scale to measure the mass of objects hung from it. You want each ****1.5****cm length along the scale to correspond to a mass difference of 0.10 kg.**

**What should be the value of the spring constant?**

Known

In a spring scale:

F =

mg = kx

**Solve for k:**

**k =** mg/x

= (0.100 kg x 9.81 m/s^{2}) / (0.015 m)

**k=** 65 N/m

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