In orthogonal turning of a bar of 100 mm diameter with a feed of 0.2 mm/rev, depth of cut of 4 mm and cutting velocity of 90 m/min, it is observed that the main (tangential) cutting force is perpendicular to the friction force acting at the chip-tool interface. The main (tangential) cutting force is 1500 N.
The orthogonal rake angle of The cutting tool in degree is
(a) zero (b) 3.58
(c) 5 (d) 7.16
The normal force acting at the chip-tool interface in N is
(a) 1000 (b) 1500
(c) 2000 (d) 2500