Spring stretched by weight, find spring constant

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SUMMARY

The discussion centers on calculating the spring constant (k) and the stretch of a spring when different weights are applied. A 60-pound weight stretches the spring 3 inches, leading to the conclusion that a 30-pound weight will stretch the spring 1.5 inches. The spring constant is determined using Hooke's Law, defined as k = F/x, where F is the force applied and x is the stretch in the spring. The correct units for k are pounds per inch (lb/in).

PREREQUISITES
  • Understanding of Hooke's Law
  • Basic knowledge of force and weight
  • Ability to perform unit conversions
  • Familiarity with spring mechanics
NEXT STEPS
  • Study Hooke's Law and its applications in physics
  • Learn how to calculate spring constants using different weights
  • Explore unit conversions in physics, specifically for force and distance
  • Investigate real-world applications of springs in engineering
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Students in physics courses, educators teaching mechanics, and anyone interested in understanding the principles of spring dynamics and force relationships.

SarahLynn2012
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I'm in a basic level physics class as a requirement for my major. Physics has never been a strong subject for me. Can someone help me with this problem?
You have a spring with a 60lb weight hanging from it.

A) If the 60 pound weight stretches the spring 3 inches, how much will a 30 pound weight stretch the spring?

**I'm assuming the answer is 1.5 inches??

B) what is the spring constant(k) of the spring? Be sure to include the correct units of k.
 
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Why did you make that assumption?
What have you done to solve the problem?
How is "spring constant" defined in your text?
No need to make excuses on your ability when asking for help, as it doe neither you or the one helping you any good wrt the problem at hand.
 
SarahLynn2012 said:
You have a spring with a 60lb weight hanging from it.

A) If the 60 pound weight stretches the spring 3 inches, how much will a 30 pound weight stretch the spring?

**I'm assuming the answer is 1.5 inches??

That's correct but can you explain why?

B) what is the spring constant(k) of the spring? Be sure to include the correct units of k.

There is a template for posting questions in the homework section and that contains a clue. It asks you to list Relevant Equations. So, what's the relevant equation that relates the length of a spring to the force on it?
 
[Please note that I have changed the thread title to reflect the question content - gneill]
 

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