he passenger car is modeled on a quarter-car model, in which case each wheel has a mass of 390 kg, in which case the specific frequency of the body is 1.1 Hz. The car is in a vibration tester that makes a vertical motion with an amplitude of 6 mm at a frequency of 6 Hz. Assume that D = 0. Calculate the maximum acceleration of the car body to one decimal place

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Free undamped vibrations

Whenever an object/system displaces in either side of its equilibrium position with the help of an external/internal means, then the object/system moves regularly or randomly on both sides of its equilibrium position. This motion is called vibration. Generally, there are three types of vibration: longitudinal vibration, transverse vibration, and torsional vibration.