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 ∅ = 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.
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 ∅ = 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.
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
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 ∅ = 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.
Transcribed Image Text:W=350 N
12
P=75 N
60°
13-х
RA
30
15°
$-15°
45°
30°
3-15°
R
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