A uniform disk of radius r 5 120 mm is welded at its
Chapter 19, Problem 19.64(choose chapter or problem)
A uniform disk of radius r = 120 mm is welded at its center to two elastic rods of equal length with fixed ends at A and B. Knowing that the disk rotates through an \(8^{\circ}\) angle when a \(500-mN \cdot m\) couple is applied to the disk and that it oscillates with a period of 1.3 s when the couple is removed, determine (a) the mass of the disk, (b) the period of vibration if one of the rods is removed.
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