The disc in Figure 3.2 has diameter 1 m and is rolling on the level ground with angular velocity 4 rad/s. Bar AB has length 1 m and is attached to the disc at A, while B slides on the ground. Determine the angular velocity of bar AB and the velocity of point B. 1 m 4 rad/s Figure 3.2 A 1 m [9 Marks] B