Apr 15, 2017

$\omega = \frac{\pi}{1800} \text{ rads " s^(-1)}$

#### Explanation:

In SI units angular speed is $\text{ rad } {s}^{- 1}$

The minute hand completes one revolution every hour ( or 3600 secs) and is independent of the size of the clock.

$\omega = 2 \pi \text{ rads per hour}$

$\omega = \frac{2 \pi}{3600} \text{ rads " s^(-1)}$

cancel

$\omega = \frac{\pi}{1800} \text{ rads " s^(-1)}$