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A body is moving along circular track of radius \( R \)
P then find the ratio of average velocity and average speed when it cover angle \( 90^{\circ} \) in \( 5 \mathrm{sec} \).
W
(1) \( \frac{2 \sqrt{2}}{\pi} \)
(2) \( \frac{\pi}{2 \sqrt{2}} \)
(3) \( \frac{\sqrt{2}}{\pi} \)
(4) \( \frac{\pi}{\sqrt{4}} \)
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