5. A facing operation is performed on a cylindrical part with diameter = 6 in and length = 15 in. The engine lathe spindle rotates at 200 rev/min. Depth of cut = 0.110 in, and feed = 0.008 in/rev. Assuming the cutting tool moves from the outer diameter of the workpiece to exactly the center at a constant velocity, determine 5.a. the velocity of the tool as it moves from the outer diameter toward the center (3 marks) 5.b. the cutting time. (3 marks)