A face milling operation is performed to finish the top surface of a steel rectangular work piece 12.0 in long x 2.0 in wide. The milling cutter has four teeth (cemented carbide inserts) and a 3,0 in diameter. Cutting conditions are: cutting speed = 500 ft/min, feed = 0.010 in/tooth, and depth of cut = 0.150 in. Determine
(a) the time to make one pass across the surface and
(b) the maximum metal removal rate during the cut.