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A double star is a system of two stars o...

A double star is a system of two stars of masses `m` and `2m`, rotating about their centre of mass only under their mutual gravitational attraction. If `r` is the separation between these two stars then their time period of rotation about their centre of mass will be proportional to

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SL ARORA-System of particles & rotational Motion-EXERCISE
  1. Statement-1 : Total linear momentum of system in centre of mass frame ...

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

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

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

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

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  6. Define moment of force or torque.

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  7. State the principle of moments.

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  8. Angular momentum is

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

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

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  11. The radius of gyration of a body depends upon

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

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

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  14. State and prove theorem of perpendicular axes.

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

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

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

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  18. Establish a relation between angular momentum and moment of inertia of...

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  19. Law of conservation of angular momentum

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  20. By the theorem of parallel axes:

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