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A small object of uniform density rolls up a curved surface with an initial velocity v. it reaches up to a maximum height of `(3v^2)/(4g) with respect to the initial position. The object isA. ringB. solid sphereC. hollow sphereD. disc

Answer» `(1)/(2)mv^(2)(1+(k^(2))/(R^(2)))=mgh=mgxx(3v^(2))/(4g)=(3)/(4)mv^(2)`
`1+(k^(2))/(R^(2))=(3)/(2)implies(k^(2))/(R^(2))=(1)/(2)`, Disc


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