The second's hand of a watch has $6\, cm$ length. The speed of its tip and magnitude of difference in velocities of its at any two perpendicular positions will be respectively
The second's hand of a watch has $6\, cm$ length. The speed of its tip and magnitude of difference in velocities of its at any two perpendicular positions will be respectively
- A
$2\pi$ and $0\, mm/s$
- B
$2\sqrt 2 \,\pi $ and $4.44\, mm/s$
- C
$2\sqrt 2 \,\pi $ and $2\pi\, mm/s$
- D
$2\pi$ and $2\sqrt 2 \pi\,mm/s $
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