Engineering Mechanics - Force System Resultants - Discussion

Discussion :: Force System Resultants - General Questions (Q.No.1)

1. 

The main beam along the wing of an airplane is swept back at an angle of 25°. From load calculations it is determined that the beam is subjected to couple moments aMx = 25,000 lb • ft and My = 17,000 lb • ft. Determine the equivalent couple moments created about the x' and y' axis.

[A]. Mx' = 26.0 kip-ft, My' = 29.8 kip-ft
[B]. Mx' = 29.8 kip-ft, My' = -4.84 kip-ft
[C]. Mx' = 26.0 kip-ft, My' = 15.47 kip-ft
[D]. Mx' = 29.8 kip-ft, My' = 4.84 kip-ft

Answer: Option C

Explanation:

No answer description available for this question.

Irfan said: (Oct 11, 2015)  
Somebody can show steps to calculate this problem.

Saideep said: (Oct 26, 2015)  
Please give me explanation answer.

Bunny said: (Oct 10, 2017)  
Mx'= 25sin25+17cos25 = 25.97kN.m.
My'= 25cos25-17sin25 = 15.47kN.m.

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