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The 3.4-KN force F is applied at point A. (a) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity. (b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero. Assume XA = 0.8 m, YA = 1.7 m, a4, b = 8. y, m A (x, y) Answers: (a) Scalar: Vector: j+ i k) kN.m On the x axis: On the y axis: (b) a Mo- Mo-i X= i y= i -x, m 3 E kN-m i+ i

The 3.4-KN force F is applied at point A. (a) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity. (b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero. Assume XA = 0.8 m, YA = 1.7 m, a4, b = 8. y, m A (x, y) Answers: (a) Scalar: Vector: j+ i k) kN.m On the x axis: On the y axis: (b) a Mo- Mo-i X= i y= i -x, m 3 E kN-m i+ i

Structural Analysis
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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The 3.4-kN force F is applied at point A.
(a) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity.
(b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero.

Assume xA = 0.8 m, yA = 1.7 m, a = 4, b = 8.

The 3.4-kN force F is applied at point A. (a) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity. (b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero. Assume XA = 0.8 m, yA = 1.7 m, a = 4, b = 8. y, m I A (x, y) j+ i k) kN-m F Answers: (a) Scalar: Vector: On the x axis: On the y axis: (b) b a Mo= i Mo (i X = i y = i -x, m m m kN.m i + i
Transcribed Image Text:The 3.4-kN force F is applied at point A. (a) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity. (b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero. Assume XA = 0.8 m, yA = 1.7 m, a = 4, b = 8. y, m I A (x, y) j+ i k) kN-m F Answers: (a) Scalar: Vector: On the x axis: On the y axis: (b) b a Mo= i Mo (i X = i y = i -x, m m m kN.m i + i
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