Question

The angular velocity of the second's hand of a watch is

• A. rad/sec
• B. rad/sec
• C. rad/sec
• D. rad/sec

Answer 1

The correct option is B rad/sec

We know that second's hand completes its revolution $\left(2\pi \right)$ in 60 sec $\therefore \omega =\frac{\theta }{t}=\frac{2\pi }{60}=\frac{\pi }{30}$ rad/sec