Question:

A vibratory system consists of mass m, a vertical spring of stiffness 2k and a horizontal spring of stiffness k. The end A of the horizontal spring is given a horizontal motion xA = αsinwt. The other end of the spring is connected to an inextensible rope that passes over two massless pulleys as shown. Assume m = 10 kg, k = 1.5 kN/m, and neglect friction. The magnitude of critical driving frequency for which the oscillations of mass m tend to become excessively large is ____rad/s (answer in integer).
vibratory system consists of mass m, a vertical spring of stiffness 2k and a horizontal spring of stiffness k

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Correct Answer: 29

Solution and Explanation

The correct answer is:29 to 31
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