1) A link in a mechanism for an automated packaging
machine is subjected to a tensile force of 860 lb. If the link is
square, 0.40 in on a side, compute the stress in the link.
2) In a pair of pliers, the hinge pin is subjected to direct shear, as shown. If the pin has a diameter of 3.0 mm and the force exerted at the handle, Fh, is 55 N, compute the stress in the pin.