For the image below please answer the following questions. Is the left side control loop (components 101) feedforward or feedback? Briefly explain what that control loop does, including what is controlled and how it is controlled (5 marks).

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.