19.49 A uniform disk of radius r = 250 mm is attached at A to a 650-mm rod AB of negligible mass that can rotate freely in a vertical plane about B. Determine the period of small oscillations (a) if the disk is free to rotate in a bearing at A, (b) if the rod is riveted to the disk at A. BO r = 250 mm

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19.49 A uniform disk of radius r = 250 mm is attached at A to a 650-mm
rod AB of negligible mass that can rotate freely in a vertical plane
about B. Determine the period of small oscillations (a) if the disk is
free to rotate in a bearing at A, (b) if the rod is riveted to the disk
at A.
B
Fig. P19.49
r =
250 mm
Transcribed Image Text:19.49 A uniform disk of radius r = 250 mm is attached at A to a 650-mm rod AB of negligible mass that can rotate freely in a vertical plane about B. Determine the period of small oscillations (a) if the disk is free to rotate in a bearing at A, (b) if the rod is riveted to the disk at A. B Fig. P19.49 r = 250 mm
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