Physics - Rotation Question with Solution | TestHub

We know angular speed of the hour and minute hand of the clock are given by, ${\omega }_h=\frac{2\pi }{12\times 3600}$ and ${\omega }_m=\frac{2\pi }{3600}$ respectively. Therefore, the relative angular velocity is just the difference between these values: $\Delta \omega =\frac{2\pi }{3600}-\frac{2\pi }{12\times 3600}=\frac{2\pi }{3600}\left(\frac{11}{12}\right)=\frac{11\pi }{21600}$ radians per second