Four people are attempting to move a stage platform across the floor. If they exert the...

 

Transcribed Image Text:

Four people are attempting to move a stage platform across the floor. If they exert the horizontal forces shown, determine (a) the equivalent force-couple system at O and (b) the points on the x- and y-axes through which the line of action of the single resultant force R passes. Assume F1 85 lb, F2-90 lb, F3 44 lb, F4-67 lb, a 84 in., b-68 in., and 0 = 41 F A F b a Answers: (a) The force-couple system at O: R= Mo= k lb-in. B C F F j) lb Four people are attempting to move a stage platform across the floor. If they exert the horizontal forces shown, determine (a) the equivalent force-couple system at O and (b) the points on the x- and y-axes through which the line of action of the single resultant force R passes. Assume F1 85 lb, F2-90 lb, F3 44 lb, F4-67 lb, a 84 in., b-68 in., and 0 = 41 F A F b a Answers: (a) The force-couple system at O: R= Mo= k lb-in. B C F F j) lb