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 = 72 lb, F3 = 49 lb, F4 = 75 lb, a = 88 in., b = 74 in., and 0 = 48° F₂ F₁ Answers: (a) The force-couple system at O: R= Mo= On the x-axis x = On the y-axis y= B i F₂ (b) The line of action of the single resultant R: i+ i klb-in. Ө -X 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 = 72 lb, F3 = 49 lb, F4 = 75 lb, a = 88 in., b = 74 in., and 0 = 48° F₂ F₁ Answers: (a) The force-couple system at O: R= Mo= On the x-axis x = On the y-axis y= B i F₂ (b) The line of action of the single resultant R: i+ i klb-in. Ө -X in. in. j) lb

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

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 = 72 lb, F3 = 49 lb, F4 = 75 lb, a = 88 in., b = 74 in., and 0 = 48%
F₂
F₁
Answers:
(a) The force-couple system at O:
R=
Mo=
On the x-axis x =
On the y-axis y=
B
i
F₂
(b) The line of action of the single resultant R:
i+ i
k lb-in.
Ө
-X
in.
in.
j) lb

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