Problem 4) An orthogonal cut is made with a carbide tool having a 15° positive rake angle. The various parameters were noted, -the cut width was 0.25" -the feed was set at 0.0125" -the chip thickness was measured to be 0.0375" -the cutting speed was 250 ft./min. the forces measured were Fc = 375 lb. and Ft = 125 lb. a) find the shear angle (4), friction force (F), friction normal force (N), and shear force (Fs). b) find the friction/ chip velocity (Ve). c) Calculate values for the coefficient of friction (mu) and the metal removal rate Q.