A 400-N force P is applied at point A of the bell crank shown. (a) Compute the moment of t...

A 400-N force P is applied at point A of the bell crank shown. (a) Compute the moment of the force P about O by resolving it into components along line OA and in a direction perpendicular to that line, (b) Determine the magnitude and direction of the smallest force Q applied at B which has the same moment as P about O.

Fig. P3.6