A cyclist takes 20 minutes to complete one round of a circular track having radius
300 m. What is the speed of the cyclist?
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Answer:
r = 300m
t = 20 min = 20×60 s = 1200 s
distance= 2πr = 2×π×300
now, speed = distance/ time
= 2× 3.142× 300/1200
= 1.571 m/s
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