- #1
kraigandrews
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Homework Statement
The equation for a damped oscillator is d2x/dt2+2βdx/dt +ω02 x = 0. Let ω0=1.0 s−1 and β = 0.54 s−1. The initial values are x(0) = x0 and v(0)=0.
Determine x(t)/x0 at t = 2π/ω0.
Homework Equations
the solution to equation is given by;
x(t)=e-[itex]\betat[/itex](A1et[itex]\mu[/itex]+A2e-t[itex]\mu[/itex])
where [itex]\mu[/itex]=[itex]\sqrt{\beta2-\omegao2}[/itex]
The Attempt at a Solution
A1=1/2(xo+(xo[itex]\beta[/itex])/[itex]\mu[/itex])
A2=1/2(xo-(xo[itex]\beta[/itex])/[itex]\mu[/itex])
The problem I am running into is that the parameter I defined as [itex]\mu[/itex] is imaginary for this case, which keeps throwing me off. My only guess is to ignore the term multiplied by A1 because it is not real, then use only the A2 term and its multiplier because of the -t in its exponent making -i =1. I do not know if this correct and also even the constants A1 and A2 have an i in them as wel.