A person runs along a circular track of radius R metres in 10 seconds. Find the average velocity for the entire journey.
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His average velocity will be zero as the displacement of him is also 0.
Actually he completes his journey in 10 seconds along a circular track.So he returns to his original position from where he has started.In this way displacement i.e,d= 0.
so ,. Vav.= total d /total t
= 0/total t
= 0.
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