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Is centre of mass of reality ?...

Is centre of mass of reality ?

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No. The centre of mass of a system is a hypothetical point which acts as a single mass particle of the system for an external force.
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The centre of mass of an object is the point inside or outside the object at which the total mass of the object can be assumed to be concentrated. The centre of mass of spherical object having uniform density is a its geometrical centre. The centre of mass of any object having uniform density is at its centroid. Where is the centre of mass located for an object of uniform density?

The centre of mass of an object is the point inside or outside the object at which the total mass of the object can be assumed to be concentrated. The centre of mass of spherical object having uniform density is a its geometrical centre. The centre of mass of any object having uniform density is at its centroid. Where is the centre of mass located for a spherical object?

The location of the centre of mass of a sphere is at:

The centre of mass of an object is the point inside or outside the object at which the total mass of the object can be assumed to be concentrated. The centre of mass of spherical object having uniform density is a its geometrical centre. The centre of mass of any object having uniform density is at its centroid. Where can the total mass of an object be assumed to be concentrated?

The Centre of mass of a solid cone along the line from the centre of the base to the vertex is at

In which of the following cases the centre of mass of a rod is certainly not at its centre?

PREMIERS PUBLISHERS-MOTION OF SYSTEM OF PARTICLES AND BODIES-OTHER IMPORTANT QUESTIONS & ANSWER (CONCEPTUAL QUESTIONS)
  1. Why centripetal force cannot do work?

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  2. Should the centre of mass of a body necessarily lie inside the body?

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  3. Is centre of mass of reality ?

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  4. Why in hand driven grinding machine, handle is put near the circumfere...

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  5. Is a body in circular motion in equilibrium?

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  6. A ladders is more likely to slip when a person is near the top than wh...

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  7. Can a body in equilibrium while in motion? If yes state an example.

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  8. If no external torque acts on a body will its angular velocity remain ...

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  9. The bottom of a ship is made heavy. Why?

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  10. Why does a boy lean towards right hand side while carrying a bag in hi...

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  11. Some heavy boxes are to be loaded along with some empty boxes on a car...

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  12. About which axis, the moment of inertia of a body is minimum?

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  13. A disc is recast into a thin walled cylinder of same radius. Which wil...

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  14. A cat is able to land on its feet after a fall. Why?

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  15. Give examples where the centre of mass coincides with the geometrical ...

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  16. Why spokes are provided in a bicycle wheel?

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  17. Two boys of the same weight sit at the opposite ends of a diameter of ...

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  18. What is the power needed to maintain uniform circular motion?

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

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  20. Why centripetal force cannot do work?

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