- #1
Gear2d
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Homework Statement
If a person holds a 30cm spring and compress on it with a force of 100 N (where k = 1000 N/m), by how much is the spring shortened.
Homework Equations
Hooks ' Law: F = -k* deltaX
The Attempt at a Solution
The answer for this is 10 cm: 10 = -1000 * deltaX
Why doesn't the length of the original spring matter here? Also, how does the "-" sign affect Hook's Law here in this problem.