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Finding Average Velocity

A runner make...

Question

A runner makes one lap around a $200 m$ of a circular track in a time of $25 s$ . The runner's average speed is :

4 m / s

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0 m / s

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8 m / s

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16 π m / s

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Solution

The correct option is C $8 m / s$
$S p e e d = \frac{T o t a l d i s t a n c e t r a v e l l e d}{T i m e} = \frac{200}{25} = 8 m / s$

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