18 Feb In Prob. 15.192, determine (a) the velocity of poi
In Prob. 15.192, determine (a) the velocity of point A, (b) the acceleration of point A.Prob. 15.192 The L-shaped arm BCD rotates about the z axis with a constant angular velocity ω1 of 5 rad/s. Knowing that the 150-mm-radius disk rotates about BC with a constant angular velocity ω2 of 4 rad/s, determine the angular acceleration of the disk.