(Solved): The extruded plastic shape will be subjected to an internal shear force of \( \mathrm{V}=325 \math ...

The extruded plastic shape will be subjected to an internal shear force of \( \mathrm{V}=325 \mathrm{lb} \). Dimensions of the cross section are \( b=1.0 \) in., \( d= \) \( 2.0 \) in.. \( c=1.4 \mathrm{in} \)., and \( t=0.16 \mathrm{in} \). Determine: (a) the magnitude of the horizontal shear stress at points \( A \) and \( B \). (b) the magnitude of the horizontal shear stress at point \( C \), which is located at a distance of \( y_{C}=0.7 \) in. below the \( z \) centroidal axis. (c) the magnitude of the maximum horizontal shear stress in the extrusion. Answer: (a)