Fwall-x W pack Fwall-y Warms Wtrunk Fm
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
The weight of the trunk (Wtrunk) is 500 N, and it has a moment arm of 0.10 m.
The weight of the arms (Warms) is 50 N, and it has a moment arm of 0.50 m.
Calculate the back extensor force (Fm),bone compressive force and bone shear force acting on the lumbar vertebra.
The horizontal force from the wall (Fwall-x) is 25 N, and it has a moment arm of 0.25 m.
The vertical force from the wall (Fwall-y) is 50 N, and it has a moment arm of 0.75 m.
The weight of the backpack (Wpack) is 25 N, and it has a moment arm of 0.15 m.
The back extensor muscle has a moment arm of 0.05 m.
Transcribed Image Text:Fwall-x
W pack
Fwall-y
Warms
Wtrunk
Fm
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