At any instant, a rolling body may be considered to be in pure rotation about an axis through the point of contact. This axis is translating forward with speedA. equal to centre of massB. zeroC. twice of centre of massD. None of these

At any instant, a rolling body may be considered to be in pure rotatio

1.	At any instant, a rolling body may be considered to be in pure rotation about an axis through the point of contact. This axis is translating forward with speedA. equal to centre of massB. zeroC. twice of centre of massD. None of these
Answer» Correct Answer - A Since, in this case instantaneous axis of rotation is always below the centre of mass. This is possible only when point of contact moves with a velocity equal to centre of mass.

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At any instant, a rolling body may be considered to be in pure rotation about an axis through the point of contact. This axis is translating forward with speedA. equal to centre of massB. zeroC. twice of centre of massD. None of these

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