A ring of radius R rolls without sliding with a constant velocity. The radius of curvature of the path followed by any particle of the ring at-the highest point its path will be :

A ring of radius R rolls without sliding with a constant velocity. The

1.	A ring of radius R rolls without sliding with a constant velocity. The radius of curvature of the path followed by any particle of the ring at-the highest point its path will be :
Answer» R 2R 4R 8R Answer :C