For what value M of the clockwise couple will the horizontal component A, of the pin reaction at A be zero? If a couple of that same magnitude M were applied in a counterclockwise direction, what would be the value of Ax? Answers: M = Ax = i 3.25 Y T 120 lb -3.2 B 1.8¹ 58 lb-ft lb 1.8'

For what value M of the clockwise couple will the horizontal component A, of the pin reaction at A be zero? If a couple of that same magnitude M were applied in a counterclockwise direction, what would be the value of Ax? Answers: M = Ax = i 3.25 Y T 120 lb -3.2 B 1.8¹ 58 lb-ft lb 1.8'

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.125P: The figure shows a three-pin arch. Determine the horizontal component of the pin reaction at A...

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

For what value M of the clockwise couple will the horizontal component A, of the pin reaction at A be zero? If a couple of that same
magnitude M were applied in a counterclockwise direction, what would be the value of Ax?
Answers:
M =
Mr
Ax= i
3.25
I
120 lb
3.2
B
1.8'
58
lb-ft
lb
1.8'
C

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