If rod OA of negligible mass is subjected to the couple moment M = 9 N · m, determine the angular velocity of the 10-kg inner gear t = 5s after it starts from rest. The gear has a radius of gyration about its mass center of k_A = 100 mm, and it rolls on the fixed outer gear, B. Motion occurs in the horizontal plane.

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0.15 m 0.6 m M = 9N-m muut B