The bent rod is supported at points A, B and C by smooth journal bearings, and is subjected to force F. If dimensions a = 2.3 m, b = 1.5 m, c = 0.6 m, and d = 2.5 m, and the force F is {-2i + 9j - 3k} kN, determine the magnitude of the moment (in kN⋅m) caused by force F about point A. Answer must include 2 places after the decimal point.

The horizontal top of a concrete column is subjected to the system of forces shown. Represent the resultant of all forces as a force Rat point O and a couple M. Also specify the magnitudes of R and M. 1 kN 0.6 m 2 KN Answers: R = i M = (i R= i M = 4 KN 0.6 m 3 kN 1 KN 7 kN 0.2 m 0.2 m 3 KN i+ i+ kN 0.5 m 0.2 9 i kN.m 7 kN -- + j+ k) kN k) kN.m

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An 800-lb force is applied to a lever-shaft assembly as shown in Fig. 4-22. Determine the magnitude of moment about point O 32.5 in. 40.0 in. 27.5 in. 35.0 in.

Determine the moment of the force about point O. Neglect the thickness of the member. Assume F = 60 N. Sign convention applies for the answer (positive is anti-clockwise). F -100 mm- m - 1600 45° 200 mm Answers: (a) -13.5 Nm (b) 13.5 Nm (c) 12.0 Nm (d) -12.0 Nm -100 mm-

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The Force F acts at the end of the bracket as shown in the diagram. Calculate the moment of the force about point P. P 0.4 m 1 0.2 m 30° F = 400 N

The turnbuckle is tightened until the tension in cable AB is 2.9 kN. Calculate the magnitude of the moment about point O of the force acting on point A.

The horizontal force F=−Fi acting on the handle of the wrench produces a component of the moment along the OA axis (z axis) of the pipe assembly of Mz={4.1 k}N⋅m . Both the wrench and the pipe assembly, OABC, lie in the y-z plane. Suggestion: Use a scalar analysis. y-z (Figure 1) Determine the magnitude of the force F.