collar C is At the instant shown in the Figure moving upwards with a velocity of 4 m/s, accelerating at a rate of 10 m/s. Disc OA with radius, T = 0.3 m is rotating with angular velocity, WDisc = 8 rad/s about point 0 and angular velocity of member ABC, WABC at 10 rad/s (U). Determine: a. angular acceleration of disc OA, OA b. angular acceleration of member ABC, ABC (6 marks) A 70 ac=10 m/s Vc = 4 m/s 60 B r 0 WDisc 0.6 m