An athlete completes one round of a circular track of P radius \( \...

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An athlete completes one round of a circular track of
P radius \( \mathrm{R} \) in \( 80 \mathrm{sec} \). What will be his displacement at the end of \( 4 \min 60 \) second?
W
(1) \( 2 \pi R \)
(2) \( 3 \pi \mathrm{R} \)
(3) \( \sqrt{2} R \)
(4) Zero
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