A slab milling operation is performed to finish the top surface of a steel rectangular work piece 12.0 in long x 2.5 in wide. The helical milling cutter, which has a 3.5 in diameter and 10 teeth, is set up to overhang the width of the part on both sides. The cutting speed is 125 ft/min, the chip load is 0.008 in/tooth, and the depth of cut is 0.300 in. Determine
(a) the time to make one pass across the surface and
(b) the maximum metal removal rate during the cut.