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What causes for the couple acting on the...

What causes for the couple acting on the needle of compass?

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KUMAR PRAKASHAN-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-SECTION-A (TRY YOURSELF (VSQs))
  1. For equilibrium of the particle what must be the forces acting on it?

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  2. Which type of motion exist due to moment of force (couple)?

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  3. What causes for the couple acting on the needle of compass?

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  4. Write the principle of moment of force for lever.

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  5. Define mechnical advantage in lever.

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  6. When does a body (system) have different centre of gravity and centre ...

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  7. Obtain the expression of moment of inertia and define it. What are the...

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  8. Obtain the expression of moment of inertia and define it. What are the...

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  9. How moment of inertia depend on the angular momentum?

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  10. What is analogues to mass of linear velocity in rotational motion?

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  11. What is radius of gyration? Write its unit and dimensional formula.

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  12. State and prove theorem of perpendicular axes.

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  13. State and prove theorem of parallel axis.

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  14. Theorem of perpendicular axis be applicable to which type of body?

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  15. Will the theorem of perpendicular axis be applicable to a solid sphere...

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  16. How many degrees of freedom does a rotational motion about fixed axis?

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  17. Write the formula for rotational kinetic energy.

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  18. Write the formula for power in rotational motion.

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  19. Derive the equation of angular momentum in the case of rotational moti...

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  20. Give the rotational analogue of force.

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