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 = 77 lb, F₂ = 76 lb, F3 = 48 lb, F4 = 75 lb, a = 81 in., b = 64 in., and 0 = 43° F F₁- F₁ b Answers: R= (i Mo= (a) The force-couple system at O: O i A On the x-axis x= i On the y-axis y= i+ i B (b) The line of action of the single resultant R: C F₁ k lb-in. e in. in. 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 = 77 lb, F₂ = 76 lb, F3 = 48 lb, F4 = 75 lb, a = 81 in., b = 64 in., and 0 = 43° F F₁- F₁ b Answers: R= (i Mo= (a) The force-couple system at O: O i A On the x-axis x= i On the y-axis y= i+ i B (b) The line of action of the single resultant R: C F₁ k lb-in. e in. in. j) lb
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter2: Basic Operations With Force Systems
Section: Chapter Questions
Problem 2.81P: The steering column of the rack-and-pinion steering mechanism lies in the xz-plane. The tube AB of...
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