The top view of a work piece that fits loosely in a fixture for drilling is shown. The dri...

The top view of a work piece that fits loosely in a fixture for drilling is shown. The drill bit has two edges that apply in-plane cutting forces F to the work piece.

(a) If F = 600 N, determine the forces O between the work piece and fixture so that the resultant couple moment is zero when α= 30°.

(b) Does your answer for Q from Part (a) change if α has different value? If yes, then repeat Part (a) with α= 60°.

Figure P4.46