The force P is applied to the 58-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 = 180 N, and (c) P = 294 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 = 0.21 and Uk = 0.17, respectively. The friction force is positive if up the incline, negative if down the incline. Answers: (a) F= 58 kg 13° i (b) F= i (c) F= i 21° H₂=0.21 H&= 0.17 N N

The force P is applied to the 58-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 = 180 N, and (c) P = 294 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 = 0.21 and Uk = 0.17, respectively. The friction force is positive if up the incline, negative if down the incline. Answers: (a) F= 58 kg 13° i (b) F= i (c) F= i 21° H₂=0.21 H&= 0.17 N N

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 61P

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