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 = 84 lb, F₂ = 83 lb, F3 = 40 lb, F4 = 70 lb, a = 87 in., b = 72 in., and 0 = 40°. F F₂ F₁ b ΤΑ B F₁ Ꮎ

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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 = 84 lb, F₂ = 83 lb, F3 = 40 lb, F4 = 70 lb, a = 87 in., b = 72 in., and 0 = 40°.
F
F₁
F₁
b
Answers:
ΤΑ
B
C
e
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 = 84 lb, F₂ = 83 lb, F3 = 40 lb, F4 = 70 lb, a = 87 in., b = 72 in., and 0 = 40°. F F₁ F₁ b Answers: ΤΑ B C e
Answers:
(a) The force-couple system at O:
R= (i
Mo = i
On the x-axis x =
(b) The line of action of the single resultant R:
On the y-axis y =
-28.7
i+
11.1
85.0
! k lb-in.
in.
in.
j) lb
Transcribed Image Text:Answers: (a) The force-couple system at O: R= (i Mo = i On the x-axis x = (b) The line of action of the single resultant R: On the y-axis y = -28.7 i+ 11.1 85.0 ! k lb-in. in. in. j) lb
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