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Q.

A sphere is rotating about a diameter at uniform angular speed then which of the following options is/are incorrect :

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a

The particles on the surface of the sphere do not have any linear acceleration

b

The particles on the diameter mentioned above do not have any linear acceleration

c

Different particles on the surface have different angular speeds

d

All the particles on the surfaces have the same linear speed

answer is C, A, D.

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Detailed Solution

As the sphere is rotating uniformly the tangential acceleration of any particle on sphere will be zero and all particles will only have normal acceleration.

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