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Assertion : If there is no external torq...

Assertion : If there is no external torque on a body about its centre of mass, then the velocity of the centre of mass remains constant.
Reason : The linear momentum of an isolated system remains constant.

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SL ARORA-System of particles & rotational Motion-EXERCISE
  1. The centre of mass of a system of particle is at the origin the number...

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  2. Give an expression for the velocity and acceleration of the centre of ...

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  3. Assertion : If there is no external torque on a body about its centre ...

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  4. Statement-1 : Total linear momentum of system in centre of mass frame ...

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  5. What will be the total linear momentum of a system of particles in a r...

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  6. A double star is a system of two stars of masses m and 2m, rotating ab...

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  7. Centre of mass of the earth-moon system lies

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  8. On what factors does the position of cm of a rigid body depend ?

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  9. Define moment of force or torque.

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  10. State the principle of moments.

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  11. Angular momentum is

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  12. The relation between the torque tau and angular momentum L of a body o...

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  13. Starting from the definition of angular momentum in terms of position ...

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  14. The radius of gyration of a body depends upon

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  15. On what factors does the radius of gyration of a body depend ?

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  16. State theorem of parallel axes and therom of perpendi cular axes about...

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  17. State and prove theorem of perpendicular axes.

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  18. State Kepler's 2nd law of planetary motion.

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  19. What is the moment of inertia of a rod of mass M and length L about an...

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  20. Establish the relation between moment of inertia and torque on a rigid...

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