a cyclist goes around a circular track once every 3 minutes the radius of the circular track is 1.5 metres calculate his speed
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Answered by
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Given :-
Radius of circular track, r = 105 m
Time taken, t = 2 min = 2 × 60 = 120 seconds
To Find :-
Speed.
Formula to be used :-
Circumference of circle = 2πr
Speed = Distance/Time
Solution :-
Putting all the values, we get
Circumference of circular track = 2πr
⇒ Circumference of circular track = 2 × 22/7 × 105
⇒ Circumference of circular track = 660 m
Now,
Speed = Distance/Time
⇒ Speed = 660/120
⇒ Speed = 5.5 m/s
Hence, the speed is 5.5 m/s.
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Answer:
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