Figure 1.62 shows a human body and a restraint system at the time of an automobile collision [1.47]. Suggest a simple mathematical model by considering the elasticity, mass, and damping of the seat, human body, and restraints for a vibration analysis of the system.

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Seat Restraint belts Windshield Instrument panel Floor FIGURE 1.62 A human body and a restraint system. Slant footboard Impact force