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Engineering Mechanics - Force System Resultants

Exercise : Force System Resultants - General Questions
  • Force System Resultants - General Questions
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.

Mx' = 26.0 kip-ft, My' = 29.8 kip-ft
Mx' = 29.8 kip-ft, My' = -4.84 kip-ft
Mx' = 26.0 kip-ft, My' = 15.47 kip-ft
Mx' = 29.8 kip-ft, My' = 4.84 kip-ft
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.

Determine the moment of force F1 about point A on the beam.

M1 = 1600 ft-lb
M1 = 100 ft-lb
M1 = 100 ft-lb
M1 = 1600 ft-lb
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.

Determine the magnitude and direction of the moment of the force of the movement if the force at A about point P.

Mp = 400 Nm
Mp = 400 Nm
Mp = 200 Nm
Mp = 200 Nm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.

Replace the force at A by an equivalent force and couple moment at P.

F = 15 kN @ = 36.9° , Mp = 67.1 kN-m
F = 15 kN @ = 36.9° , Mp = 30 kN-m
F = 15 kN @ = 143.1° , Mp = 67.1 kN-m
F = 15 kN @ = 143.1° , Mp = 30 kN-m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.

Determine the magnitude of the projection of the moment cause by the force about the aa axis.

Maa = 80.0 N-m
Maa = 56.6 N-m
Maa = 28.3 N-m
Maa = 100.0 N-m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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