Section 3.3 Moment of a Force 3.17 The four forces shown have parallel lines of action. Member AB is perpendicular to the lines of action of these forces. (a) Determine the moment of each force with respect to point A. (b) Compute the algebraic summation of the moments with respect to point A. Be sure to note the sense of the resul- tant moment. A 20 lb 4' PROBLEM 3.17 5' 40 lb + 6' 50 lb 8⁰ 30 lb B 2y2

Problem 4.39 Consider the system shown in (Figure 1). Figure 70 F-80 lb 8 CISA 16 15 58 1 of 1 Part A Determine the moment of the force F about the door hinge at B. Express the result as components of a Cartesian vector. Enter the x, y, and components of the moment in pound-feet to three significant figures and separated by commas. (Ms),.(Ms), (Ms) = Submit Provide Feedback Request Answer 195| ΑΣΦ. 241 | vec A A C ? lb-ft

Untitled Section F1 F2 a F3 d F4 Consider the following values: - F5 a = 16 m; b = 11 m; c = 13 m; d = 8 m; F1 = 3 kN; F2 = 11 kN; F3 = 2 kN; F4 = 20 kN; F5 = 2 kN; a = 30° , 0 = 60° , B = 30° 1] What is the resultant moment of the five forces acting on the rod about point A? a) 88.8 kN.m b) 76.3 kN.m c) 19.6 kN.m d) 55.5 kN.m e) 59.1 kN.m f) 81.3 kN.m 2] What is the resultant moment of the five forces acting on the rod about point B? a) 88.8 kN.m b) 120.8 kN.m c) 31.6 kN.m d) 98.9 kN.m e) 41.1 kN.m f) 24.2 kN.m 3] What is the resultant moment of the five forces acting on the rod about point C? a) 125.7 kN.m b) 178.1 kN.m c) 254.6 kN.m d) 439.1 kN.m e) 144.1 kN.m f) 215.3 kN.m 4] What is the resultant moment of the five forces acting on the rod about point D? a) 77.8 kN.m b) 98.3 kN.m c) 100.6 kN.m d) 18.9 kN.m e) 97.1 kN.m f) 60.1 kN.m 5] What is the moment of the force F2 about point E? Activate V ) 151.3 kN.m Go to Setting! a) 122.7 kN.m b) 108.1 kN.m c) 66.6 kN.m d) 83.1 kN.m e)…

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20 KN 2 kN /m 40 kN m 150 kN m 450 mm- 600 mm 8m 3m 300 mm 5KN 3 KN /m +15 m--1.5 m- 3m S kip t 15 kip ft 15 kip ft 6 ft 10 t 6 ft Determine the moment of the force system of Figure below with respect to point A and B

Find the resultant of the forces on the truss shown below. Reference the resultant with respect to point B.  Note: Calculate the angle relative to the horizontal for the 6 kN sloped force before you can draw the force triangle for the 6 kN force (this will involve using a trig equation). Include a sketch to support this trig equation.