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Which physical quantity is conserved whe...

Which physical quantity is conserved when a planet revolves around the sun?

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Angular momentum of planct.
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FULL MARKS-MOTION OF SYSTEM OF PARTICLES AND RIGID BODIES-ADDITIONAL QUESTIONS SOLVED - I ( SHORT ANSWER QUESTIONS (1 MARK))
  1. Obtain an expression for the power delivered by torque.

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  2. A boy sits near the edge of revolving circular dise (i) What will be...

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  3. Are moment of inertia and radius of gyration of a body constant quanti...

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  4. A cat is able to land on its feet after a fall. Which principle of phy...

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  5. About which axis a uniform cube will have minimum moment of inertia?

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  6. Explain the principle of moments of rotational equilibrium? Hence defi...

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  7. Write down the moment of inertia of a disc of radius R and mass m abou...

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  8. Can the couple acting on a rigid body produce translatory motion?

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  9. Which component of linear momentum does not contribute to angular mome...

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  10. A system is in stable equilibrium. What can we say about its potential...

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  11. Is radius of gyration a constant quantity?

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  12. Two solid spheres of the same mass are made of metals of different den...

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  13. The moment of inertia of two rotating bodies A and B are 1(A) and I(B...

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  14. A particle moves in a circular path with decreasing speed. What happen...

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  15. What is the value of instantaneous speed of the point of contact durin...

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  16. Which physical quantity is conserved when a planet revolves around the...

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  17. What is the value of torque on the planet due to the gravitational for...

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  18. If no external torque acts on a body, will its angular velocity be con...

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  19. Why there are two propellers in a helicopter?

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  20. when a child sits stationary at one end of a long trolley moving unifo...

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