Muscle moment arm = 5 cm = d Weight of load = 10 kg Weight of torso = 50 kg a) What is the Moment of the load to torso (in Ncm)? 1400 or 1400 Ncm b) Demonstrate how you calculated the moment of the load to torso c) What is the force on the back-muscles needed to keep this person stationary in this position (in N)? 280 N or 280 d) Demonstrate how you calculated the force on the back-muscles needed to keep this person stationary

Muscle moment arm = 5 cm = d Weight of load = 10 kg Weight of torso = 50 kg a) What is the Moment of the load to torso (in Ncm)? 1400 or 1400 Ncm b) Demonstrate how you calculated the moment of the load to torso c) What is the force on the back-muscles needed to keep this person stationary in this position (in N)? 280 N or 280 d) Demonstrate how you calculated the force on the back-muscles needed to keep this person stationary

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

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Question

100%

CUTTING PLANE
HORIZONTAL
FCOMP
E
FMUSC
FA
SEAR
mgew
"ngL
Source: Chaffin, D.B., Andersson, G.B,J., and Martin, B. J, 2006. Occupational
Biomechanics (4th Edition), New York: Wiley.

b = 20 cm
h = 40 cm
Muscle moment arm = 5 cm = d
Weight of load = 10 kg
Weight of torso = 50 kg
a) What is the Moment of the load to torso (in Ncm)?
1400 or 1400 Ncm
b) Demonstrate how you calculated the moment of
the load to torso
c) What is the force on the back-muscles needed to
keep this person stationary in this position (in N)?
280 N or 280
d) Demonstrate how you calculated the force on the
back-muscles needed to keep this person stationary

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