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 = 233k lb-ft

F = (32i-24k) lb, M = (-120i+96j-160k) lb-ft

F = (32i-24k) lb, M = -72k lb-ft

F = (32i-24k) lb, M = (-120i+160j+40k) lb-ft

Replace the force F, having a magnitude of F = 40 lb and acting at B,

1.	Replace the force F, having a magnitude of F = 40 lb and acting at B, by an equivalent force and couple moment at A.
A.	F = (32i-24k) lb, M = (-120i+96j-160k) lb-ft
B.	F = (32i-24k) lb, M = 233k lb-ft
C.	F = (32i-24k) lb, M = -72k lb-ft
D.	F = (32i-24k) lb, M = (-120i+160j+40k) lb-ft
Answer» B. F = (32i-24k) lb, M = 233k lb-ft

Discussion

No Comment Found

Related MCQs

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.
Determine the direction (0° 180°) of the 30-lb force F so that the moment of F about point A has the maximum magnitude.
A force and couple act on the pipe assembly. Replace this system by an equivalent single resultant force. Specify the location of the resultant force along the y axis, measured from A. The pipe lies in the x-y plane.
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.
Replace the loading by an equivalent force and couple moment acting at point O.
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.
The boys A, B and C stand near the edges of a raft as shown. Determine the location (x, y) of boy D so that all four boys create a single resultant force acting through the raft's center O. Provided the raft itself is symmetric, this would keep the raft afloat in a horizontal plane. the mass of each boy is indicated in the diagram.
Determine the direction (0¬∞ 180¬∞) of the 30-lb force F so that the moment of F about point A has the maximum magnitude.
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.
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.

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

Discussion

No Comment Found

Related MCQs

Reply to Comment