The 6.0-kN force Fis applied at point A. (a) Compute the moment of Fabout 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 Fiszero. Assume xa = 0.9 m, ya = 1.3 m, a = 3, b = 7. у, т A (x, y,) x, m Answers: (a) Scalar: Mo = kN-m Vector: Mo =(i i+ j+ i k) k On the x (b) аxis: X3D i On the y

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
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The 6.0-kN force Fis 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 thex- and y-axes about which the moment of Fis zero.
Assume x4 = 0.9 m, yA - 1.3 m, a = 3, b = 7.
у, т
A (x , y,)
x, m
Answers:
(a) Scalar:
Mo =
kN-m
Vector
Mo =( i
i+ i
i+
i
k) kl
On the x
(b)
axis:
i
m
On the y
Transcribed Image Text:The 6.0-kN force Fis 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 thex- and y-axes about which the moment of Fis zero. Assume x4 = 0.9 m, yA - 1.3 m, a = 3, b = 7. у, т A (x , y,) x, m Answers: (a) Scalar: Mo = kN-m Vector Mo =( i i+ i i+ i k) kl On the x (b) axis: i m On the y
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