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A ring of radius R rolls without slippin...

A ring of radius `R` rolls without slipping on a rough horizontal surface with a constant velocity. The radius of curvature of the path followed by any particle of the ring at the highest point of its path will be :
.

A

`3R`

B

`2R`

C

`4R`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
Radius of Curvature `=(("velocity")^(2))/("No rmalAccel eration")=((2v)^(2))/(v^(2)//R)=4R`
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