Parting-off operation is carried out on a cylindrical work-piece of 100mm diameter. The groove width is 2 mm and an in feed of 0.2 mm per revolution is given at a maximum cutting speed of 60 m/mm. the specific cutting force for the material is 800 N/mm2.
i) the tangential force on the tool is
(a) 160 N (b) 320 N
(c) 480 N (d) 640 N
ii) The maximum power requirement for the operations is
(a) 80 W (b) 100 W
(c) 200 W (d) 320 W