$7-11.$ The forearm and biceps support the $2-$kg load at A$.$If C can be assumed as a pin support, determine the resultant internal loadings acting on the cross section of the bone of the forearm at E$.$ The biceps pulls on the bone along BD$\mathrm{.}75\backslash$deg $230$ mm$35$ mm $35$ mmDetermine the internal forces and moments at point E by cutting through the arm and bicep and applying all external forces. Assume positive x to the right and positive y to be up$.$ The unknown internal forces in the x and y directions should be labeled Nx and Vy respectively. The unknown internal moment about the z$-$axis should be labeled Mz$.$ On your FBD draw these unknown forces and moments in their positive directions. $($ans$.$: Nx$=-22\mathrm{.}5,$ Vy$=-64\mathrm{.}5$ N; Mz$=-2\mathrm{.}26$N$-$m$)$

$7-11.$ The forearm and biceps support the $2-kg$ load at $A.$ If $C$ can be assumed as a pin support, determine the resultant internal loadings acting on the cross section of the bone of the forearm at $E.$ The biceps pulls on the bone along $BD.$

Determine the internal forces and moments at point E by cutting through the arm and bicep and applying all external forces. Assume positive $x$ to the right and positive $y$ to be up$.$ The unknown internal forces in the x and y directions should be labeled Nx and Vy respectively. The unknown internal moment about the z $-$axis should be labeled Mz$.$ On your FBD draw these unknown forces and moments in their positive directions. $($ans$.$: $Nx=-22\mathrm{.}5,Vy=-64\mathrm{.}5N$;$Mz=-2\mathrm{.}26N-m$