"In an orthogonal turning of a mild steel bar on a lathe the following data were available:

Diameter of workpiece = 60 mm, cutting speed = 100 m/min, Back rake angle = 140, Feed rate = 0.3 mm/rev, Cutting force = 150 kg, Chip thickness = 0.4 mm Calculate shear angle, Coefficient of friction, cutting power in HP, chip flow velocity and shear force."