Assuming potential energy `'U'` at ground level to be zero.
All object are made up of same material.
`U_(P) =` Potential energy of solid sphere
`U_(Q) =` Potential energy of solid cube
`U_(R) =` Potential energy of solid cone
`U_(S) =` Potential energy of solid cylinder

Options

A. `U_(S) gt U_(P)`
B. `U_(Q) gt U_(S)`
C. `U_(P) gt U_(Q)`
D. `U_(S) gt U_(R )`

Answer

A, B, C

Explanation

`PE` of solid sphere
`= mgR = "mg"(D)/(2) = rhogD^(4) ((pi)/(12))`
`PE` of solid cube
`= "mg"(D)/(2) = rhogD^(4)((1)/(2))`
PE of solid cone
`= "mg"(D)/(4) = rhogD^(4) ((pi)/(48))`
PE of solid cylinder
`"mg"(D)/(2) = rogD^(4) ((pi)/(8))`