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## Homework Statement

There's a horizontal thin wire whose mass is negligible and whose length is l=1m. It is strained with constant force F=10N. If we place a tiny pellet in the middle of wire (mass of pellet is m=1g) and then we bring wire out of equilibrium position (moving out of it's original position is normal to the wire, 90 degrees). Determine the frequency of oscillation of wire.

## Homework Equations

ω=2πf

## The Attempt at a Solution

We know that, since this is oscillation motion, following equation holds:

x'' + ω^2 x=0 ,where x is amplitude, so we could actually try to find acceleration (a=x'') in function of amplitude x, and then, expression multiplied by x would be ω^2 and then, since ω=2πf we could easily find f here, but i don't know how to determine x''. Any ideas?