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Unformatted text preview: 2 matrix and ~a is a constant vector. b) Find the solution to (2), hence write down the solution to (1). c) Sketch the phase orbits of the general solution to the vector DE in (2), highlighting the solution curve to the IVP (2) for t 0. d) Based on your phase portrait, is the motion under, over, or critically damped? e) Is the speed of the mass at a maximum just before, after, or as it crosses the equilibrium position for the rst time? [Hint: speed =  y  ; use (c).]...
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 Summer '09
 Ducharme

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