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Two solid spheres of the same are made of metals of different densities. Which of them has a larger moment of inertia about a diameter ?

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The sphere of metal with smaller density shall be bigger in size & hence it will have larger moment of inertia.
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PRADEEP-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-VERY SHORT ANSWER QUESTIONS
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  3. There are two spheres of same mass and same radius, one is solid and o...

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  5. Name the rotational analogue of force. What are its units ?

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  10. How are torque and angular momentum related ?

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  13. Write an expression for kinetic energy of rolling body.

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