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Can anyone give me a hand with this, cause I'm stumped and can't remember exactly how to go about solving this.
here's the eqn
m[d^2x/dt^2 + wsubo^2 x] = F cos wt
I'm supposed to show that x(t) = xsubo cos wt
w is the incident freq
wsubo is the resonant freq
m is mass
I'm guessing it has to be shown by undetermined coefficients but I can't find the right path exactly.
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