The thin rod in the figure has a mass of 15kg and is attached to a spring of constant k = 50 N / m at one end, which has an unstretched length of 1.5 m. If the rod is released from rest in a horizontal position (ѳ = 0 °) and only conservative forces act on it, determine: a) What is the moment of inertia of the thin rod around the axis of rotation at A?  b) What is the angle at which the rod is momentarily at rest again?  c) What is the maximum angular velocity of the path?

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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,