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Questions  

A small object of uniform density rolls up a curved surface with an initial velocity v. It reaches up to a maximum height of 3v2/4g w.r.t. the initial position. The object is 

a
ring
b
solid sphere
c
hollow sphere
d
disc

detailed solution

Correct option is D

mv22+Iω22=mg×3v24g⇒I=mR22For pure rolling condition, v=Rω

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