16. Under what 17. A body is rotating at a steady rate. Is any torque acting on the body ? 18. Which physical quantity corresponds to moment of linear momentum ? 19. Write the dimensional formula of angular momentum. Is it a scalar ? 20. Write the SI unit of angular momentum. [Delhi 08] 21. What is the ratio of the SI unit to the CGS unit of angular momentum ? 22. Name the constant whose dimensions are same as that of angular momentum ? 23. Does the magnitude and direction of angular momentum depend on the choice of the origin? 24. Does the total momentum of a system of particles depend upon the velocity of the centre of mass ?
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