The motor of Sample 7/2 is shown againhere. If the motor pivots about the x-axis at the

Chapter 7, Problem 7/11

(choose chapter or problem)

The motor of Sample Problem 7/2 is shown again here. If the motor pivots about the x-axis at the constant rate \(\dot{\gamma}=3 \pi \mathrm{rad} / \mathrm{sec}\) with no rotation about the Z-axis (N = 0), determine the angular acceleration \(\alpha\) of the rotor and disk as the position \(\gamma=30^{\circ}\) is passed. The constant speed of the motor is 120 rev /min. Also find the velocity and acceleration of point A, which is on the top of the disk at this instant.