A cyclist goes around a circular track one every 2 minute. if the radius of circular track in 105 metre. calculate his speed? (given π =2/7
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Answer:
Given :-
Radius , r = 105
time t = 2min
= 120 second
we know also
circumference or distance of circle = 2πr
⇒2×22/7×105
⇒ 660 m
∴ speed = distance / time
⇒660 m/ 120
⇒5·5m/s
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