The force Pis applied to the 41-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P=0, (b) P= 170 N, and (c) P- 265 N. (d) What value of Pis required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are u, 0.25 and 0.22. respectively. The friction force is positive if up the incline, negative if down the incline. 41 kg 25 0.25 0.22 16 Answers: (a) F- N. (b) F- N. (c) F- N. (d) P-

The force Pis applied to the 41-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P=0, (b) P= 170 N, and (c) P- 265 N. (d) What value of Pis required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are u, 0.25 and 0.22. respectively. The friction force is positive if up the incline, negative if down the incline. 41 kg 25 0.25 0.22 16 Answers: (a) F- N. (b) F- N. (c) F- N. (d) P-

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 7.71P: The 600-lb cable spool is placed on a frictionless spindle that has been driven into the ground. If...

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