Answer
Assuming the angular velocity is constant, then the angular acceleration and the
tangential acceleration vanish, since
$$
\alpha=\frac{d \omega}{d t}=0 \text { and } a_{t}=r \alpha=0
$$
Work Step by Step
Assuming the angular velocity is constant, then the angular acceleration and the
tangential acceleration vanish, since
$$
\alpha=\frac{d \omega}{d t}=0 \text { and } a_{t}=r \alpha=0
$$