The brake is to be designed to be self locking, that is, it will not rotate when no load P is applied to it when the disk is subjected to a clockwise couple moment Mo. Determine the distance d of the lever that will allow this to happen. The coefficient of static friction at B is μ = 0.5. -1.5 ft-1.5 ft- B Mo O 1 ft d

The brake is to be designed to be self locking, that is, it will not rotate when no load P is applied to it when the disk is subjected to a clockwise couple moment Mo. Determine the distance d of the lever that will allow this to happen. The coefficient of static friction at B is μ = 0.5. -1.5 ft-1.5 ft- B Mo O 1 ft d

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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The brake is to be designed to be self locking, that is, it will not rotate when no load P is applied to it when the disk is subjected to a clockwise couple moment Mo as shown in (Figure 1). Figure -1.5 ft 1.5 ft B Mo C 1 ft 1 of 1 > Part A Determine the distance d of the lever that will allow this to happen. The coefficient of static friction at B is μ = 0.23. Express your answer in feet to three significant figures. d= Submit |VE| ΑΣΦ | Η Provide Feedback Request Answer vec ? ft