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## Homework Statement

Problem: [/B]Given the mass spring system solve for k

_{1}

The natural frequency w

_{n}= 10 s

^{-1}

k

_{1}=2k

_{2}

m=1kg

## Homework Equations

w

_{n}=(k/m)

^{.5}

## The Attempt at a Solution

solve for k

_{1}

m x w

^{2}

_{n}=2.5k

_{1}

k

_{1}= 40 N/m

Note: I calculate 40 N/m and the solution states 250 N/m. I think I am having a fundamental misunderstanding with mass spring systems.