A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of an incline and released. The friction coefficients between the objects and the incline are same and not sufficient to allow pure rolling. The smallest kinetic energy at the bottom of the incline will be achieved by
Text Solution
Verified by ExpertsThe correct answer is:
B
a = 
For solid sphere , ⇒ I cm = 
mk 2
k s = 
For hollow sphere fy, = 
mR 2 = mk 2
k H = 
so vr% k s < k H
then rc a s > a H
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