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Vidatu
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Homework Statement
A body of unknown mass is attached to an ideal spring with force constant 123 N/m. It is found to vibrate with a frequency of 5.65 Hz.
Find the mass of the object.
Homework Equations
F=-kx
F=ma
No idea what else...
The Attempt at a Solution
No idea where to start. I get to:
ma=-kx
m = (-123x) / (a)
and can't think where to go from there. I've tried:
1cycle=4 max displacments (x), so
f=5.65Hz = 22.6 cycles of x /s
thereby returning x as .25, but that's dead wrong. Any ideas? I'm totally lost.
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