5. If r = {1+2j} m and F = {10 i + 20j + 30 k} N, then the moment of F about the y-axis is a. 10 b. -30 C. -40 d. None of the above. N.m.

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter2: Basic Operations With Force Systems
Section: Chapter Questions
Problem 2.53P: Determine the moment of the force F=40i8j+5kN about the y-axis.
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5. If r= {1+2 j} m and F = {10 i + 20j + 30 k} N, then the moment of F about the y-axis is
a. 10
b. -30
C. -40
d.
None of the above.
N.m.
Transcribed Image Text:5. If r= {1+2 j} m and F = {10 i + 20j + 30 k} N, then the moment of F about the y-axis is a. 10 b. -30 C. -40 d. None of the above. N.m.
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