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A drum of 40 mm radius Is attached to a disk of 100 mm radlus. The disk and drum have a total mass of 4 kg and a combined radius
of gyration of 90 mm. A cord is attached as shown and pulled with a force P of magnitude 20N. Knowing that the disk rolls without
sliding.
determine the minimum value of the coefficient of static friction compatible with this motion.
none of them
B) us-0.15
Us-0.25
D) ps=0.229

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