For a damped oscillation, the displacement of the structure,f , is a function of time, t, and it is defined by the equat

[answerhappygod]

For a damped oscillation, the displacement of the structure,f ,
is a function of time, t, and it is defined by the equation:
f(t) = 8 e-kt cos(wt)
Consider the case where the damping coefficient k = 0.5 and
frequency w = 3.
(a)Create an Excel formula for this equation to compute f for t
= 0.0, 0.2, 0.4, 4.0
seconds.
Remember to use absolute reference for k and w in the formula,
and cell reference address for t.
And note that Euler's number raised to a power, c , is entered
in Excel as EXP(X).
(b)Identify (highlight) the value of the displacement for t =
3.6 s.