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Engineering Mechanics - Force System Resultants

Exercise : Force System Resultants - General Questions
  • Force System Resultants - General Questions
31.

Determine the moment of the force at A about point P. Use a vector analysis and express the result in Cartesian vector form.

MP = (160i+240j+40k) N-m
MP = (380i+160j+400k) N-m
MP = (280i+200j+400k) N-m
MP = (40i+80k) N-m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.

The man at B exerts a force of 140N on the rope attached to the end of beam AC as shown. Determine the moment of this force about the base of the beam at A.

MA = (720i-360k) N-m
MA = (-720i+360k) N-m
MA = (-720i-360k) N-m
MA = (720i+360k) N-m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.

The three forces acting on the water tank represent the effect of the wind. Replace this system by a single resultant force and specify its vertical location from point O.

R = 600 lb, d = 65.0 ft below O
R = 600 lb, d = 130.4 ft below O
R = 600 lb, d = 65.0 ft above O
R = 600 lb, d = 130.4 ft above O
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.

Determine the moment of the force at A about point P. Use a vector analysis and express the result in Cartesian vector form.

MP = (600i-200k) N-m
MP = (800i-200j+1200k) N-m
MP = (1200i+100k) N-m
MP = (400i-200j+1200k) N-m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.

This structural connection is subjected to the 8,000-lb force. Replace this force by an equivalent force and couple acting at the center of the bolt group, O.

F = (6400i+4800j) lb, M = (-3.20i+7.20j) kip-ft
F = (-6400i-4800j) lb, M = -400k kip-ft
F = (-6400i-4800j) lb, M = (-3.20i-7.20j) kip-ft
F = (6400i+4800j) lb, M = 400k kip-ft
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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