In the figure here, a cylinder having a mass of 2.8 kg can rotate about its central axis through point O. Forces are applied as show F1 = 9.7 N, F2 = 8.3 N, F3 = 1.8 N, and F4 = 4.5 N. Also, r = 4.3 cm and R = 10 cm. Taking the clockwise direction to be negative, find angular acceleration of the cylinder. (During the rotation, the forces maintain their same angles relative to the cylinder.) Rotation axis
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