Write a code to investigate the type of the critical point for the given linear system and construct a phase portrait.

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Chapter 6.2, Problem 23P

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Write a code to investigate the type of the critical point for the given linear system and construct a phase portrait.

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A damper (or dashpot) is connected to the mass M of the previous problem. This could represent air resistance. The entire system could be a simple model of an automobile wheel suspension system (assuming the automobile body immobile in a vertical direction). Then the damper acts as a shock absorber. As before, the system is displaced and released and x(tg) = x, and v(to) = vo - It can be shown that the motion of the system Is described by the following differential equation: Mx + Dx + Kx(t) = 0 where D is the damping factor of the dashpot and x = v(t) = velocity at time t. Model and simulate the motion of the system from timet= to to t= tf, using a digital computer program, FIG. 1 DAMPER 3 SPRING FIG.I M MASS