A rod ABC rotating at 20rpm about a vertical axis through point A supports a 400N ball at its lower end. It is fixed in position by the rod BD as shown in the figure. Neglecting the weights of rods AC and BD, compute the force P in rod BD. Identify if this force is in tension or compression. At what rpm will this force be zero? Draw FBD of the rod AC during the motion of the system. A 0.60m 30 0.40m D

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Forced undamped vibrations

In mechanical engineering, vibration is expressed as the term that occurs due to an object's backward and forward movement about a point of equilibrium. Generally, there are three types of vibrations which are,