A) \[\frac{2\pi }{3}rad/s\]
B) \[\frac{\pi }{3}rad/s\]
C) \[\frac{\pi }{30}m{{s}^{-1}}\]
D) \[\frac{\pi }{30}rad\,{{s}^{-1}}\]
Correct Answer: D
Solution :
[d] We know that the second's hand of a clock makes one complete round in 1 minute i.e. in 60 seconds. Angular displacement, \[\theta =2\pi \]rad. \[\therefore \] Angular velocity, \[w=\frac{\theta }{t}=\frac{2\pi }{60}\] \[=\frac{\pi }{30}\,\,rad\,\,{{S}^{-1}}\]
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