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Engineering Mechanics - Force System Resultants

Exercise : Force System Resultants - General Questions
  • Force System Resultants - General Questions
26.

Determine the magnitude and direction of the couple moment.

M = 3900 lb-ft CW
M = 3900 lb-ft CCW
M = 3120 lb-ft CW
M = 3120 lb-ft CCW
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.

A twist of 4 N-m is applied to the handle of the screwdriver. Resolve this couple moment into a pair of couple forces F exerted on the handle.

P = 20 N
P = 10 N
P = 800 N
P = 1600 N
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.

Replace the force F, having a magnitude of F = 40 lb and acting at B, by an equivalent force and couple moment at A.

F = (32i-24k) lb, M = (-120i+96j-160k) lb-ft
F = (32i-24k) lb, M = 233k lb-ft
F = (32i-24k) lb, M = -72k lb-ft
F = (32i-24k) lb, M = (-120i+160j+40k) lb-ft
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.

The resultant force of a wind loading acts perpendicular to the face of the sign as shown. Replace this force by an equivalent force and couple moment acting at point O.

F = -120i lb, M = (-3000j+1800k) lb-ft
F = -120i lb, M = 3500i lb-ft
F = -120i lb, M = -3500j lb-ft
F = -120i lb, M = 3500k lb-ft
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.

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

Mp = 143.5 ft-lb
Mp = 1191 ft-lb
Mp = 1104 ft-lb
Mp = 1200 ft-lb
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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