The device shown in the figure consists of a spring-supported indicator ABC with a stiffness k = 800 N/m. The spring is located at a distance b = 150 mm from end A of the pinned indicator. The device is adjusted so that the indicator points to zero on the angular scale when no load P is applied. For a load P = 8 N, what distance x must this load act in order for the indicator to show a scale of 3°

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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.