Final answer:
The angular acceleration of the potters wheel is 0.0121 rad/s^2.
Step-by-step explanation:
The formula to calculate angular acceleration is:
angular acceleration = change in angular velocity / change in time
In this problem, the initial angular velocity is 0 rev/s and the final angular velocity is 0.20 rev/s.
The change in angular velocity is 0.20 - 0 = 0.20 rev/s.
The change in time is 32.9 s.
Converting the angular velocity and time to rad/s, we have:
angular acceleration = (0.20 rev/s - 0 rev/s) / 32.9 s
= 0.20 rev/s * (2π rad/1 rev) / 32.9 s
= 0.0121 rad/s^2
Therefore, the angular acceleration is 0.0121 rad/s^2.