In the figure here, a cylinder having a mass of 1.9 kg can rotate about its central axis through point O. Forces are applied as shown: F-1.7 N, F = 8.4 N, F3 = 6.4 N, and F4 = 7.9 N. Also, r = 3.5 cm and R = 14 cm. Taking the clockwise direction to be negative, find the angular acceleration of the cylinder. (During the rotation, the forces maintain their same angles relative to the cylinder.) Number i Unit FA Rotation axis F LUD R