The force Pis applied to the 49-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-199 N, and (c) P-308 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 u, - 0.25 and 4 - 0.20, respectively. The friction force is positive if up the incline, negative if down the incline. 49 kg 20 P,-0.25 P=0.20 16" Answers: (a) F- (b) F- N (c) F- N (d) P- z z z z

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The force Pis applied to the 49-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 - 199 N, and (c) P- 308 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 p, - 0.25 and u - 0.20, respectively. The friction force is positive if
up the incline, negative if down the incline.
49 kg
20
H,= 0.25
= 0.20
16
Answers:
(a) F-
(b) F-
(c) F-
(d) P-
z z z z
Transcribed Image Text:The force Pis applied to the 49-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 - 199 N, and (c) P- 308 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 p, - 0.25 and u - 0.20, respectively. The friction force is positive if up the incline, negative if down the incline. 49 kg 20 H,= 0.25 = 0.20 16 Answers: (a) F- (b) F- (c) F- (d) P- z z z z
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