Question

A spherical body of radius R is allowed to
roll down on an incline without slipping
and it reaches with a speed vo at the
bottom. The incline is then made smooth
by waxing and the body is allowed to
slide without rolling and now the speed
attained is vo. The radius of gyration of
the body about an axis passing through
its centre is​

Answer 1

Answer:

the way to do the question is given in attachment but i think you should refer the queation again because i think its wrong....both cases have same velocity which would give us a wrong answer.