Chapter 6, Problem 85P

Find the forces in each member and specify if it is in tension or compression. At E is pin support and at D is link support. 5 m -link support B 5 m 5 m 5 m 5 m 5 m 5 m E 30 kN 20 kN

2. Use the Method of Sections for this problem. From drawing a FBD of the entire system and summing the moments about point A, you find that the reaction force at roller F=115kN ↑. Determine the force in members CD, CH, and HI and state if each member is in tension or compression. 2 m 80 kN 100 kN 2 m- 2 m- E D 1.5 m C -60 kN H 1.5 m B 80 kN I A 1.5 m

B2

Determine the magnitudes of the force R and couple Mexerted by the nut and bolt on the loaded bracket at O to maintain equilibrium. 155 mm 200 mm 22 2.9 kN 2.9 kN 48 150 mm Answers: R = i kN M = kN-m

The vertical mast supports the 3.5-kN force F and is constrained by the two fixed cables BC and BD and by a ball-and-socket connection at A. Calculate the tension T₁ in BD. Can this be accomplished by using only one equation of equilibrium? Assume a 5.8 m, b=3.7 m, c-2.1 m, h = 4.6 m. B T₂ Answer: T₁ = i 2 -14 CO L T₁ b kN

Please no hand writing solution

The compound bar is supported by a thrust bearing at A, a slider (journal) bearing at B, and the cable CD. Determine the tension in the cable and the magnitude of the bearing reaction at A. Neglect the weight of the bar. With complete fbd.

2.0 m 100 kg 2.0 m 0.5 m 1.5 m 1.5 m The pulley at E is frictionless. Point B is a pinned connection; support A is a fixed support. The pin at C is in a smooth slot. s in: Determine the magnitude of of the x-component of the reaction force at A, Ax= N. Determine the magnitude of of the y-component of the reaction force at A, Ay= N. Determine the magnitude of of the external moment applied at A, MA= Nm. O O :

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