A particle moves with constant speed \( v \) along a regular hexagon \( A B C D E F \) in the sa...

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A particle moves with constant speed \( v \) along a regular hexagon \( A B C D E F \) in the same order. Then the magnitude of the average velocity for its motion from \( A \) to :(A) \( F \) is \( v / 5 \)(B) \( D \) is \( v / 3 \)(C) \( C \) is \( v \sqrt{3} / 2 \)(D) \( B \) is \( v \)
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