A 60% -d G 12 ft Figure FRC-221 45° B
Chapter7: Deflections Of Trusses, Beams, And Frames: Work-energy Methods
Section: Chapter Questions
Problem 33P
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Question
If the coefficient of static friction at the contact points A and B is μs = 0.4, determine the following if the girl is 75-lb and the plank is 20-lb: PLEASE ANSWER HUHU
1. Reaction at A (in lb) (ANSWER: 90.4) and Reaction at B (in lb) (ANSWER: 60.2).
2. The minimum distance d (in ft) can a girl stand on the plank without causing it to slip. (ANSWER: 2.23).
Transcribed Image Text:A
60%
-d
G
12 ft
Figure FRC-221
45°
B
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