Force F1 =-15i + 20j + 18k is located at point E which is halfway between points B and C. The couple moment at Poi

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Force F1 15i 20j 18k Lbs Is Located At Point E Which Is Halfway Between Points B And C The Couple Moment At Poi 1 (103.03 KiB) Viewed 63 times

Force F1 =-15i + 20j + 18k <lbs> is located at point E which is halfway between points B and C. The couple moment at Point D is Me = -75i <in-lb>. Line BC is below the x-y plane, and makes an angle of 30° to this plane. Calculate the following: a. The moment vector of Fı about point A. b. The magnitude of the moment of F1 about the line segment AC. c. The moment of the 431b force applied at point D about point A. Assume this force acts along the positive z direction. d. The moment vector of the couple formed by the two 55lb forces acting at points B and C. e. Replace the system of forces and couples of the figure by an equivalent resultant force and couple moment about A. f. Calculate the magnitudes and directions pf the resultant force and couple moment. 00 B 5511 30 Fi 4 M. - 75 int 5516 D 3 in. 4316