Answered: The force P is applied to the 38-kg…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

The force P is applied to the 38-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 = 143 N, and (c) P = 208 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_s = 0.23 and μ_k = 0.20, respectively. The friction force is positive if up the incline, negative if down the incline.

38 kg
24
P0.23
H= 0.20
15
Answers:
(a) F-
(b) F-
i
(c) F=
i
(d) P=
i

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