Workout problem $2[1$

A worker is positioned with both feet on level ground while lifting a piece of equipment with both hands. The individual is lifting and pulling with a total of $300$ N of force at a $45$ angle with respect to the ground. The body angles and anthropometric data for the individual are given in the accompanying figure and table. State any assumptions made.

Please calculate

$(1)$ the reactive forces at elbow joint and shoulder joint

$(2)$ the reactive moments for elbow joint and shoulder joint

$(3)F_C$ : Spine compression force

$(4)M_{\frac{15}{51}}$

Joint Center Locations

Center of Gravity Locations

Not to scale

$\backslash$table$[[$Link$,$Length $(m),$COM distance $(m),$Weight $(N)$