A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 seconds for every circular lap. The average velocity and average speed for each circular lap respectively is

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Correct answer: C. (c) Distance travelled in one rotation (lap) =2 π r Average speed = d i s t a n c et i m e= 2 π rt = 2×3.1 4×1 0 06 2.8=1 0 m s^−1 Net displacement in one lap =0 Average velocity = n e t d i s p l a c e m e n tt i m e= 0t=0.

$A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 seconds for every circular lap. The average velocity and average speed for each circular lap respectively is$

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