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  4. Angular speed of hour hand of a clock in degree per second is

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Q. Angular speed of hour hand of a clock in degree per second is

MHT CETMHT CET 2016

Solution:

Time taken by the hour hand to complete one rotation of $360^{\circ}$ is $12$ hours i.e.$43200$ seconds
Thus its angular velocity $w =\frac{360}{43200}$
We get $w=\frac{1}{120}$ degree per second