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Gravitational field

Classical Mechanics Level 2

Which of the following is true for a uniform solid sphere of mass \( M \) and radius \( b ?\)

Gravitational field at r=b\(\text{ is } GM/b^{3}. \) Gravitational field at r=0 is equal to 0. For r>b, gravitational field increases as r increases. For r<b, gravitational field decreases as r increases.

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by Srinivasa Satti

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