corrineikerd
05.12.2019 •
Physics
Disk a, of weight 5 lb and radius r = 3 in., is at rest when it is placed in contact with a belt that moves at a constant speed v = 54.5 ft/s. knowing that μk = 0.20 between the disk and the belt, determine the time required for the disk to reach a constant angular velocity. (round the final answer to two decimal places.)
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Ответ:
-7.72556820415
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