The second's hand of a watch has length ...

The second's hand of a watch has length of 6cm.Speed of end point and magnitude of difference of velocities at two perpendicular positions will be

6.28 and 0 mm/s

8.88 and 4.44 mm/s

8.88 and 6.28 mm/s

6.28 and 8.88 mm/s

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