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प्रश्न
Write the position of the centre of gravity for a hollow cone, a hollow sphere, and a parallelogram.
लघु उत्तरीय
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उत्तर
- Hollow Cone: The centre of gravity lies on its central axis, at a vertical height of `h/3` from its base, where h is the total height of the cone.
- Hollow Sphere: The centre of gravity lies exactly at its geometric centre.
- Parallelogram: The centre of gravity lies at the point of intersection of its two diagonals.
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