6.66b SOLVE THE SUBPARTS FOR (b)a)The direction of the IM (impending motion) of the Block is _____degrees.b)The direction of the IM (impending motion) of the Wedge is _____degrees.c)The magnitude of the angle that the R1 force is off the vertical is _____degrees.d)The magnitude of the angle that the R2 force is off the vertical is _____degrees.e)The magnitude of the angle that the R3 force is off the horizontal is _____degrees.f)The magnitude of R1 (reaction force on Surface-1) is _____lb.g)The magnitude of R2 (reaction force on Surface-2) is _____lb.h)The magnitude of R3 (reaction force on Surface-3) is _____lb.i)The magnitude of maximum force P that will not initiate motion of the system is _____lb.NOTE:Submit 5 Sig Fig. 6/66 The coefficient of static friction u, between the 100-lbbody and the 15° wedge is 0.20. Determine the mag-nitude of the force P required to begin raising the100-lb body if (a) rollers of negligible friction arepresent under the wedge, as illustrated, and (b) therollers are removed and the coefficient of static fric-0.20 applies at this surface as well.tion us100 lb60015°Problem 6/66

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6/66 The coefficient of static friction µ. between the 100-lb body and the 15° wedge is 0.20. Determine the mag- nitude of the force P required to begin raising the 100-lb body if (a) rollers of negligible friction are present under the wedge, as illustrated, and (b) the rollers are removed and the coefficient of static fric- =0.20 applies at this surface as well. tion Ms

6/66 The coefficient of static friction µ. between the 100-lb body and the 15° wedge is 0.20. Determine the mag- nitude of the force P required to begin raising the 100-lb body if (a) rollers of negligible friction are present under the wedge, as illustrated, and (b) the rollers are removed and the coefficient of static fric- =0.20 applies at this surface as well. tion Ms

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 7.36P: The coeffient of static friction between the uniform bar AB of weight W and the ground is 0.45. Find...

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