The plate clutch consists of a flat plate A that slides over the rotating shaft S. The sha...

The plate clutch consists of a flat plate A that slides over the rotating shaft S. The shaft is fixed to the driving plate gear B. If the gear C, which is in mesh with B. is subjected to a torque of M = 0.8 N•m, determine the smallest force P, that must be applied via the control arm, to stop the rotation. The coefficient of static friction between the plates A and D is µs = 0.4. Assume the bearing pressure between A and D to be uniform.