The ratio of the time taken by a solid sphere and that taken by a disc of the same mass and radius to roll down a rough inclined plane from rest, from the same height is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
In case of pure rolling, 
(for solid sphere) and 
(for disc).
For solid sphere, 
Similarly, for disc, 
From 
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