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 = 68 lb, F₂ = 86 lb, F3 = 26 lb, F4 = 62 lb, a = 94 in., b = 75 in., and 0 = 45°. y F F₂ F₁ b Answers: R= (i Mo= O (a) The force-couple system at O: |A B i+ i k lb-in. Ө -x 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 = 68 lb, F₂ = 86 lb, F3 = 26 lb, F4 = 62 lb, a = 94 in., b = 75 in., and 0 = 45°. y F F₂ F₁ b Answers: R= (i Mo= O (a) The force-couple system at O: |A B i+ i k lb-in. Ө -x j) lb

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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 = 66 lb, F2 = 81 lb, F3 = 32 lb, F4 = 72 lb, a = 84 in., b = 63 in., and 0 = 45% F F₂ F₁ Answers: (a) The force-couple system at O: R= Mo= 197.912 1.345 On the x-axis x = On the y-axis y = 6.80 B. (b) The line of action of the single resultant R: 16.232 F, i+ i k lb-in. Ꮎ 82.912 in. in. j) lb
Given the loading on the beam as shown: Find the location of the equivalent force from point A in m? 8 kN/m 4 kN/m A 3 m 3 m 3.2 О 3.4 2.8 O 4 3.6
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 = 81 lb, F3 = 32 lb, F4 = 72 lb, a = 84 in., b = 63 in., and 0 = 45° F₂ F₁ Answers: 9 R= (a) The force-couple system at O: Mo= |A Mi On the x-axis x = On the y-axis y = B i C F, (b) The line of action of the single resultant R: i+ i k lb-in. Ө 4 -x in. in. j) lb
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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 = 86 lb, F₂ = 84 lb, F₁=43 lb, F₂=59 lb, a=76 in, b= 65 in, and 0 = 48% F₁ F R= b Answers: (0) The force-couple system at O: Mo= IA B 8 1i+ klb-in. Dlb
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