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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 :
.

Text Solution

Verified by Experts

The correct Answer is:
`4 R`
`w.r..` lowest point `(IOAR)`

all centre `R = (v^(2))/(g)`
or hight point `R' = ((2v)^(2))/(g) = (4v^(2))/(g)`
`r' = 4 R`.
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