The length of second's hand in a watch is 1 cm. The change in velocity – McqOptions

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1.	The length of second's hand in a watch is 1 cm. The change in velocity of its tip in 15 seconds is [MP PMT 1987, 2003]
A.	Zero
B.	\[\frac{\pi }{30\sqrt{2}}cm/\sec \]
C.	\[\frac{\pi }{30}cm/\sec \]
D.	\[\frac{\pi \sqrt{2}}{30}cm/\sec \]
Answer» E.

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