Unit #$2$ EC

To earn up to $+1$ point of extra$-$credit for unit $2,$ complete

the following tasks and upload to ICON dropbox by Friday,

October $18,11$:$59$pm$.$ You may work in groups of up to $4$

students; only $1$ student need submit the solution, but

make sure all students' first and last names are on the

document.

Courtney $(1\mathrm{.}71$ m in height, $67\mathrm{.}78$ kg in weight$)$ is performing a

static warrior $2$ yoga pose within the frontal plane. Joint

centers, CG locations, segment masses, and COP location

are provided in the table $($origin of coordinate system is

bottom$-$left of image, $+x=$ rightward and $+y=$ superior$).$

$F_{(ground\text{r}\text{i}\text{g}\text{h}\text{t}le\frac{g}{f}\text{o}\text{o}\text{t})}=(-145i,378jN).$

Draw a FBD to solve for the unknown forces and

moments at the right hip.

Set up the equations of linear equilibrium and

solve for the unknown forces at the right hip.

Set up the equation of angular equilibrium and

solve for the unknown torque at the right hip.

To what joint action does the joint torque

correspond $($i$.$e$.$ hip flexion, extension, adduction,

abduction, internal rotation, external rotation, etc.$)?$

note: you do not have to have everything completely

correct to get some credit, and the instructors are

happy to assist you in completing this if you come to

us with thoughtful questions