(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A student measures the force required to stretch a spring by various amounts and makes the graph shown in the figure, which plots this force as a function of the distance the spring has stretched.

Part A) Does this spring obey Hooke's Law?

Part B) What is the force constant of the spring in N/m?

Part C) What force would be needed to stretch the spring a distance of 17 cm from its unstretched length, assuming that it continues to obey Hooke's Law (F=N)?

2. Relevant equations

F is proportional to displacement x

F=-kx

k=delta f/delta x

3. The attempt at a solution

We didnt cover this in class yet, but I know that a hookean body gets displaced, and once the force is removed it goes back to its origional position. Which means that the displacement along the x axis is the same as the force applied to it.

For part A) I would say No, the spring does not obey Hooke's Law.

For part B) I get -1/2 N/m from F=-kx 5=(-x) 2.5

For part C) -17N from F=(-k ) 17cm

**Physics Forums - The Fusion of Science and Community**

# Hooke's Law. Does this spring...

Know someone interested in this topic? Share a link to this question via email,
Google+,
Twitter, or
Facebook

Have something to add?

- Similar discussions for: Hooke's Law. Does this spring...

Loading...

**Physics Forums - The Fusion of Science and Community**