9 ft 75ft 4 . G. Determine the moment of the force about the x, y, & z axis. F = 750 lb %3D --

The caster unit is subjected to the pair of 75-lb forces shown. Determine the moment associated with these forces. The moment is negative if clockwise. positive if counterclockwise, 1.4" 75 lb lb-in. 75 lb Answer: M = i

Express and identify the resultant of the two forces and one couple shown acting on the shaft angled in the x-z plane. Assume F = 350 lb, M = 310 lb-ft, a = 8 in., b = 22 in., 0 = 17% 10 F. a -M k) lb-in. i Answer: M = (i b F Ө i+ i j+

Chapter 2, Problem 2/127 A 2.0-lb force is applied to the knob of the window-opener mechanism when the crank BC is horizontal. Determine the moment of the force about point A and about line AB (report both answers as vectors). 0.9 2.0 3.3" Ib C. B 23° Answers: MA = ( i+ k) Ib-in. MAB = (L Ji+l k) Ib-in.

The 340-lb force is applied at point A of the bracket. Determine the moments of this force about point B, about point C, and about the line BC. "Ac k) lb-in. k) lb-in. B 16" 142° 21" Answers: Mg = (i Mc-(i MBC= 18" + i+ 340 lb Mi lb-in. j+ j+ Mi

45. Answer: 560. 60.. F 50 mm -y 100 mm 100 mm The Force of F = 27.6 N acts on the bracket as shown. Determine the moment of the force about the a-a axis of the pipe

4. The force F is acting along DC. Using the triple scalar product to determine the moment of F about the bar BA, you could use any of the following position vectors except a. Bс b. TAD AC DB BD C. d. e. 1.5 m 2 m C 0.5 m B 1m 2.5 m 4 m