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A ring of radius 2m is rolling without slipping with constant velocity of 2 m/s on a plane surface. At the point of contact with the surface, O is a point on the ring. Then acceleration of O is 

a
zero
b
4 m/s2
c
1 m/s2
d
2 m/s2

detailed solution

Correct option is D

a→0=a→c+a→OC=o+V2R↑solid: a0=V2R=222m/s2=2 m/s2

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