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A rod of length 2 m is kept vertical ins...

A rod of length 2 m is kept vertical inside a smooth spherical shell of radius 2m. The rod starts slipping inside the shell . Mass of the rod is 4 kg.
Velocity of centre of the rod (in m/s) at the instant is approximately

A

5.5

B

6.2

C

3.2

D

10.2

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A
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