# A man steps on his bathroom scale and obtains a reading of 243 lb. The spring in the scale is...

## Question:

A man steps on his bathroom scale and obtains a reading of 243 lb. The spring in the scale is compressed by a displacement of -0.0480 inches.

Calculate the value of its spring constant in:

(a) pounds per inch.

(b) newtons per meter.

## Hooke's Law.

Let's imagine a mass hanging from a spiral spring. As the mass increases, the spring stretches. If the elastic range of the spring is not exceeded, then the applied force (weight) is proportional to the elongation.

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Variables:

• F is the spring force.
• k is the constant of the spring.
• {eq}\Delta y{/eq} and is the elastic compression distance of the spring.
• w is the... Hooke's Law & the Spring Constant: Definition & Equation

from

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.