6/71 The weight of the drum D and its cable is 100 lb, and the coefficient of friction u for the bearing is o.20. Determine the force P required toraise the 80-lb cylinder if the bearing friction is (a) neglected and (b) included in the analysis. The weight of the shaft is negligible.161080 lbAnswerPROBLEM 6/71a. P- 50 lbb. P 52.9 lb

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6/71 The weight of the drum D and its cable is 10o lb, and the coefficient of friction u for the bearing is 0.20. Determine the force P required to raise the 80-lb eylinder if the bearing friction is (a) neglected and (b) included in the analysis. The weight of the shaft is negligible. 16 10 80 lb Answer PROBLEM 6/71 a. P-50 lb b. P 52.9 lb

6/71 The weight of the drum D and its cable is 10o lb, and the coefficient of friction u for the bearing is 0.20. Determine the force P required to raise the 80-lb eylinder if the bearing friction is (a) neglected and (b) included in the analysis. The weight of the shaft is negligible. 16 10 80 lb Answer PROBLEM 6/71 a. P-50 lb b. P 52.9 lb

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.49P

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