۱:V م الاثنين ۱4 شباطtrusses part1.pdftheir correct sense.• Using the calculated results, continue to analyze each of the otherjoints. Remember that a member in compression"pushes" on thejoint and a member in tension "pulls" on the joint. Also, be sure tochoose a joint having at most two unknowns and at least oneknown force.EXAMPLE 6.1Determine the force in each member of the truss shown in Fig. 6-8aand indicate whether the members are in tension or compression.500 N2 mSOLUTION45%CSince we should have no more than two unknown forces at the jointand at least one known force acting there, we will begin our analysis atjoint B.2 m(a)BJoint B.The free-body diagram of the joint at B is shown in Fig. 6-8b.500 NApplying the equations of equilibrium, we have'FBCEF, = 0;500 N FBC sin 45° 0FBC = 707.1 N (C) Ans.(b)+1EF, = 0;FBC Cos 45° -FBA = 0FBA= 500 N (T) Ans.%3D707.1 NSince the force in member BC has been calculated, we can proceed toanayzeoumEmoTrHNmmranrareran member CA and the sunnort***

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Determine the force in each member of the truss shown in Fig. 6-8a and indicate whether the members are in tension or compression. B 500 N 2 m SOLUTION 45 Since we should have no more than two unknown forces at the joint and at least one known force acting there, we will begin our analysis at joint B. 2 m (a) Joint B. The free-body diagram of the joint at B is shown in Fig. 6-8b. Applying the equations of equilibrium, we have 500 N FBC ΣF, - 0 500 N FBC Sin 45° = 0 FBC = 707.1 N (C) Ans. (b) +1 F, = 0; FBC cos 45° - FBA 0 FBA = 500 N (T) Ans. %3D 707.1 N

Determine the force in each member of the truss shown in Fig. 6-8a and indicate whether the members are in tension or compression. B 500 N 2 m SOLUTION 45 Since we should have no more than two unknown forces at the joint and at least one known force acting there, we will begin our analysis at joint B. 2 m (a) Joint B. The free-body diagram of the joint at B is shown in Fig. 6-8b. Applying the equations of equilibrium, we have 500 N FBC ΣF, - 0 500 N FBC Sin 45° = 0 FBC = 707.1 N (C) Ans. (b) +1 F, = 0; FBC cos 45° - FBA 0 FBA = 500 N (T) Ans. %3D 707.1 N

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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