What is the importance of segmental center of mass to the lever systems of the human body?

What is the importance of segmental center of mass to the lever systems of the human body? 




A. segmental COM will follow a parabolic path when projected
B. segmental COM is the point of resistance (where weight vector is drawn) and therefore determines the length of the resistance arm
C. both A and B
D. none of the above






Answer: B