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Questions  

Two uniform solid spheres having unequal masses and unequal radii are released from rest from the same height on a rough incline. If the spheres roll without slipping,

a
the heavier sphere reaches the bottom first
b
the bigger sphere reaches the bottom first
c
the two spheres reach the bottom together
d
the information given is not sufficient to tell which sphere will reach the bottom first.

detailed solution

Correct option is C

For rolling without slipping down a rough inclined plane, acceleration For a solid sphere, So both spheres will roll with same acceleration. Therefore, from  , we can conclude that option (3) is correct.

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