The force P is applied to the 57-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=245 N, and (c) P= 365 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 μs = 0.27 and Uk = 0.21, respectively. The friction force is positive if up the incline, negative if down the incline. Answers: (a) F= 57 kg 17° i (b) F= i (c) F= i (d) P= i 24° H₂=0.27 H = 0.21 N N N N

The force P is applied to the 57-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=245 N, and (c) P= 365 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 μs = 0.27 and Uk = 0.21, respectively. The friction force is positive if up the incline, negative if down the incline. Answers: (a) F= 57 kg 17° i (b) F= i (c) F= i (d) P= i 24° H₂=0.27 H = 0.21 N N N N

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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