A milling operation is performed on an NC machining center. Total travel distance = 300mm in a direction parallel to one of the axes of the worktable. Cutting speed = 1.25 m/sec and chip load = 0.05 mn. The end milling cutter has four teeth and its diameter = 20.0 mm the axis uses a de servomotor whose output shaft is coupled to a lead screw with pitch = 6.0mm. The feedback sensing device is an optical encoder that emits 250 pulses per revolution. Determine
(a) the feed rate and time to complete the cut,
(b) the rotational speed of the motor, and
(c) the poise rate of thee no drat the feed rate indicated.