If a disc is rolling without slipping ( centre of mass is moving rightward and the body is rotating about the centre of mass clockwise), then the ratio of speeds of point C to that of B is

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2 : 1

1 : 1

4 : 1

answer is B.

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Detailed Solution

VB=2Vcos12002=Vvelocity at C VC=2Vcos90o2=2VVC:VB=2:1

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