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 = 66 lb, F2 = 60 lb, F3 = 25 lb, F4 = 74 lb, a = 88 in., b = 67 in., and F. F, F₁ Answers: b R= (a) The force-couple system at O: Mo= O (i On the x-axis x = B On the y-axis y = F, i+i (b) The line of action of the single resultant R: k lb-in. Ө in. in. = 41° 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 = 66 lb, F2 = 60 lb, F3 = 25 lb, F4 = 74 lb, a = 88 in., b = 67 in., and F. F, F₁ Answers: b R= (a) The force-couple system at O: Mo= O (i On the x-axis x = B On the y-axis y = F, i+i (b) The line of action of the single resultant R: k lb-in. Ө in. in. = 41° 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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