Suppose that the constant angular velocity of the crank OA is changed to wg = 12,5 rad/s. Knowing that link AB is a uni form slender rod and the crank OA rotates in the vertical plane, the angul welocity and acceleration of the link AB are calculated as wAr = 8,33 rad/s and aAR = -92,6 rad/s?, respectively, for the configuration when the crank OA is horizontal. Determine the accel eration of the centre of mass of the link AB, ag, at that instant. 0.4 m 1.0m 0.8 m Ltfen birini sein: O a. a_G= 4,63 i m/s ^2 Ob. a G= (6,94 i - 4,63 j) m/s^2 Oc. a_G= (-4,63 i + 2,31 j) m/s^2 Od. a G= (5,79 i + 2,31 j) m/s^2 O e. a_G= (2,31 i + 2,31 j) m/s^2