Answer
$\omega=1.45\times10^{-4} \frac{rad}{s}$
Work Step by Step
The hour hand of a clock completes a round trip in 12 hours. Since one hour is 3600 seconds, 12 hours equal:
$3600\times 12=43200$sec
Thus, the angular speed of hour hand is given as
$\omega=\frac{2\pi}{43200}=\frac{2(3.1416)}{43200}$
$\omega=1.45\times10^{-4} \frac{rad}{s}$
