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COM of Other Bodies

Assuming grav...

Question

Assuming gravitational potential energy $^{'} U^{'}$ at ground level to be zero.

All objects are made up of same material.
$U_{P} =$ gravitational potential energy of solid sphere
$U_{Q} =$ gravitational potential energy of solid cube
$U_{R} =$ gravitational potential energy of solid cone
$U_{S} =$ gravitational potential energy of solid cylinder

U_{S} > U_{P}

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U_{Q} > U_{S}

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U_{P} > U_{Q}

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U_{S} > U_{R}

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Solution

The correct option is D $U_{S} > U_{R}$
$U_{Q} > U_{S} > U_{P} > U_{R}$
$∵ M_{Q} > M_{S} > M_{P} > M_{R}$ and $C M$ of cone is at smallest height.

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^{'} U^{'}

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P \to Solid sphere, Q \to Solid cube, R \to Solid cone, S \to Solid cylinder

^{'} U^{'}

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

P \to Solid sphere, Q \to Solid cube, R \to Solid cone, S \to Solid cylinder

^{'} U^{'}

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

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