Determine the maximum number of 50-lb packages that can be placed on the belt without causing the belt to slip at the drive wheel A which is rotating with a constant angular velocity. Wheel B is free to rotate. Also, find the corresponding torsional moment M that must be supplied to wheel A. The conveyor belt is pre-tensioned with the 300-lb horizontal force. The coefficient of kinetic friction between the belt and platform P is ?_s = 0.2, and the coefficient of static friction between the belt and the rim of each wheel is ?_s = 0.35.

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0.5 ft 0.5 ft P= 300 Ib