Angular speed is represented by the following expression:
[tex]\begin{gathered} w=\frac{\Delta\theta}{\Delta t} \\ \text{where,} \\ \Delta\theta=\text{ revolution } \\ \Delta t=\text{ time} \end{gathered}[/tex]By the information given:
A complete revoluion is 2pi radians
[tex]\begin{gathered} w=\frac{2\pi}{5.8} \\ w=1.08\text{ radians per minute} \end{gathered}[/tex]