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  3. 2 a 4kg slender bar length 2m is suspended from...

Question: 2 a 4kg slender bar length 2m is suspended from...

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2. A 4kg slender bar length 2m is suspended from one end vertically and is free to swing WITH SMALL AMPLITUDE. Aerodynamic drag and friction on the pivot exert a resisting moment of magnitude 1.4 de/dt Theta is measured from the vertical. What sort of motion results? What is the period and frequency of vibration if any?.. How long does it take for the amplitude of vibration to decrease to half of its initial value? (10 MARKS)
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