As shown in Figure below, a flexible belt placed around a rotating drum of 120-mm radius acts as a brake when the arm ABCD is pulled down by the force P. The coefficient of kinetic friction between the belt and the drum is 0.20 determine the force P that would result in a braking torque of 12,000-N.mm, assuming that the drum is rotating counterclockwise. Neglect the weight of the brake arm. 60° 60 | B 60 - 120 – 60 mm mm 120 mm

As shown in Figure below, a flexible belt placed around a rotating drum of 120-mm radius acts as a brake when the arm ABCD is pulled down by the force P. The coefficient of kinetic friction between the belt and the drum is 0.20 determine the force P that would result in a braking torque of 12,000-N.mm, assuming that the drum is rotating counterclockwise. Neglect the weight of the brake arm. 60° 60 | B 60 - 120 – 60 mm mm 120 mm

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 7.60P: The force P applied to the brake handle enables the band brake to reduce the angular speed of a...

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