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 = 74 lb. F3 = 26 lb. Fa= 59 lb. a = 95 in., b = 73 in, and 0 = 43° F₁ Answers: (a) The force-couple system at O: R= Mo= i 181 -176 On the x-axis x= On the y-axis y = (b) The line of action of the single resultant R: i -318 B 0 116 i+ 66.2 k lb-in. in. in. jlb

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 = 74 lb. F3 = 26 lb. Fa= 59 lb. a = 95 in., b = 73 in, and 0 = 43° F₁ Answers: (a) The force-couple system at O: R= Mo= i 181 -176 On the x-axis x= On the y-axis y = (b) The line of action of the single resultant R: i -318 B 0 116 i+ 66.2 k lb-in. in. in. jlb

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section: Chapter Questions

Problem 99A

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