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A plank 25 meters long is placed on rough inclined planes at an angle of 15 with the horizontal as shown in Figure 3. The angle of friction is Ø = 15° at both inclines. If the weight of the plank is W = 350 N concentrated at 12 meters from end A, compute the minimum distance x from B at which a load P = 75 N can be placed before slipping impends. W=350 N P=75 N 12 60° 13-x RA 30 15° 45° Ø=15° p-15° 30° 45 RB Figure 3

A plank 25 meters long is placed on rough inclined planes at an angle of 15 with the horizontal as shown in Figure 3. The angle of friction is Ø = 15° at both inclines. If the weight of the plank is W = 350 N concentrated at 12 meters from end A, compute the minimum distance x from B at which a load P = 75 N can be placed before slipping impends. W=350 N P=75 N 12 60° 13-x RA 30 15° 45° Ø=15° p-15° 30° 45 RB Figure 3

Elements Of Electromagnetics
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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A plank 25 meters long is placed on rough inclined planes at an angle of 15 with the horizontal as shown in Figure 3. The angle of friction is Ø = 15° at both inclines. If the weight of the plank is W = 350 N concentrated at 12 meters from end A, compute the minimum distance x from B at which a load P = 75 N can be placed before slipping impends. W=350 N A P=75 N 12 60° 13-x R 30° 15° B p-15° 745° ø=15° 30° 450 RB Figure 3
Transcribed Image Text:A plank 25 meters long is placed on rough inclined planes at an angle of 15 with the horizontal as shown in Figure 3. The angle of friction is Ø = 15° at both inclines. If the weight of the plank is W = 350 N concentrated at 12 meters from end A, compute the minimum distance x from B at which a load P = 75 N can be placed before slipping impends. W=350 N A P=75 N 12 60° 13-x R 30° 15° B p-15° 745° ø=15° 30° 450 RB Figure 3
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