150-lb block is placed on a 33° incline and released from rest. The coefficient of static fric 0.46. (a) Determine the maximum and minimum values of the initial tension T in the spring leased. (b) Calculate the friction force F (positive if up the slope, negative if down) on the ssume W = 150 lb, 0 = 33° nswers: ) Tmax= ) F= i W Ө i μ₂ lb lb, Tmin= i lb

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A 150-lb block is placed on a 33° incline and released from rest. The coefficient of static friction between the block and the incline μs
is 0.46. (a) Determine the maximum and minimum values of the initial tension T in the spring for which the block will not slip when
released. (b) Calculate the friction force F (positive if up the slope, negative if down) on the block if T = 108 lb.
Assume W = 150 lb, 0 = 33º.
Answers:
(a) Tmax=
(b) F = i
Ө
i
lb
lb, Tmin
i
lb
Transcribed Image Text:A 150-lb block is placed on a 33° incline and released from rest. The coefficient of static friction between the block and the incline μs is 0.46. (a) Determine the maximum and minimum values of the initial tension T in the spring for which the block will not slip when released. (b) Calculate the friction force F (positive if up the slope, negative if down) on the block if T = 108 lb. Assume W = 150 lb, 0 = 33º. Answers: (a) Tmax= (b) F = i Ө i lb lb, Tmin i lb
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