2. In an orthogonal cutting operation, the cutting tool is0.280 inch in width and has a rake angle = 20°. Chip thickness before the cut = 0.012 inch. The deformed

chip thickness after cut = 0.024 inch. The shear force along the shear plane = 250 lb, calculate (a) the shear plane angle, (b)the shear strain for the operation, and (c) the shear stress acting along the shear plane. (12')Wo