3. The right angle bar shown in Figure 3 rotates about the z axis through 0 as shown. If the bar rotates with angular acceleration of a = 3 rad/s2 in the direction shown, determine the velocity and acceleration of point P when the angular velocity reaches a) = 2 rad/s. (ans: 1.08m/s, 2.69m/s2 and correct directions required) Figure 3: Right angled bar rotating about 0