2 a) If F= 200 lb, determine the resultant couple moment produced by the two applied couples. b) Determine the required magnitude of force F if the resultant couple moment in the frame is 200 lb-ft clockwise. 2 ft 2 ft 2 ft 150 lb 30 B -2 ft2 ft- F 5 -F 30 150 lb - F 0.2 m