estion $7$

$5$ points

$"($USCS units$)$ The shear strength of a certain work material $=50,000l\frac{b}{i}n2.$ An orthogonal cutting operation is performed using a tool with rake angle $=20$ at a cutting speed $=100f\frac{t}{m}in,$ chip thickness before the cut $=0\mathrm{.}015in,$ and width of cut $=0\mathrm{.}150in.$ The resulting chip thickness ratio $=0\mathrm{.}50.$ Determine the friction force in lhe"