The force Pis applied to the 36-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 = 182 N, and (c) P = 283 N. (d) What value of P is required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are µ; = 0.32 and H = 0.29, respectively. The friction force is positive if up the incline, negative if down the incline. 36 kg 30 H, = 0.32 H = 0.29 20 Answers: (a) F= i N (b) F= i N (c) F= (d) P= N

The force Pis applied to the 36-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 = 182 N, and (c) P = 283 N. (d) What value of P is required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are µ; = 0.32 and H = 0.29, respectively. The friction force is positive if up the incline, negative if down the incline. 36 kg 30 H, = 0.32 H = 0.29 20 Answers: (a) F= i N (b) F= i N (c) F= (d) P= N

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 7.72P

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