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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

5 R

B

2 R

C

friedel-crafts reaction

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Radius of Curvature is given by `=(("velocity"^(2)))/("Normal Acceleration")` `=((2v)^(2))/(v^(2)//R)=4R`
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