Angular velocity of seconds hand of a watch will be

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3-2.Motion in Plane

easy

The angular velocity of seconds hand of a watch will be

A$\frac{\pi }{{60}}\ rad/\sec $

B$\frac{\pi }{{30}}\ rad/sec$

C$60\,\pi \,\,rad/sec$

D$30\,\pi \,\,rad/sec$

Solution

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

Standard 11

Physics

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Solution

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