· Zafar starts running along a circular path of
radius 100 m for his morning exercise. What is his
average velocity at the end of one lap if he takes
5 minutes to complete one lap?
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Answer:
Radius of lap = 100m
Circumference =2πR=200π=628m
time taken to cover one lap = 62.8s
Hence average speed =
62.8
628
=10ms
−1
Average velocity = 0 as the inital and final positions are same (after completing a lap) (displacement =
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