Solid sphere and hollow sphere rolled down an inclined plane

[Yatin]

A solid sphere and a hollow one of same mass and radii are rolled down a rough inclined plane.
Which of the following is true?
(A) solid sphere reaches bottom with greater speed.
(B) solid sphere reaches the bottom with greater kinetic energy.

( I know that option A is correct.Thus I felt that B should also be correct.
However A is the only option given in the book as correct. Please help)

 

[stockzahn]

Why do you think the kinetic energy of the solid sphere is greater? Because of its higher velocity? If this is the case, maybe another look at the statement helps: it says ' [...] are rolled down [...] '.

 

[JBA]

See the above but even in that case V at the end = V initial + the acceleration due to gravity that is experienced by both balls; or, is there something else I am also missing?

 

[Herman Trivilino]

Please use the template so we can help you.