Questions

A ring is rolling without slipping on a plane surface as shown in figure. If speed of A is 4 m/s, speed of B is

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22 m/s

2 m/s

42 m/s

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detailed solution

Correct option is A

If ω be its angular velocity and since O is the instantaneous centre of rotation, then VA=ω×OA and VB=ω×OB∴ VBVA=ω×OBω×OA=2R2R⇒VBV=12⇒VB=22 m/s

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