An object is rotating on a horizontal circular track with constant speed ' \( \mathrm{u}_{0} \) ....

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An object is rotating on a horizontal circular track
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with constant speed ' \( \mathrm{u}_{0} \) ' in clock-wise direction.
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Initially object was moving in east direction.
Change in velocity as object rotates by an angle \( 90^{\circ} \) is-
(A) zero
(B) \( 2 \mathrm{u}_{0} \)
(C) \( \sqrt{2} u_{0} \)
(D) \( \sqrt{3} \mathrm{u}_{0} \)


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