A workbar with 5.0 in diameter and 48 in length is chucked in an engine lathe and supported at the opposite end using a live center. A 40.0 in portion of the length is to be turned to a diameter of 4.75 in one pass at a speed = 400 ft/min and a feed = 0.012 in/rev. Determine: (a) the required depth of cut, (b) cutting time, and (c) metal removal rate.