Question No. 2: A sketch of an adjustable-height platform used to load and unload freight trucks is shown in Figure 2.0. Draw a kinematic diagram of the mechanism. Specify the number of links and the number of joints and calculate the mobility for the mechanism shown in the figure. (CLO 1, PLO 1)

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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.