Question

A cyclist goes around a circular track once every two minutes . If the radius of the circular track is 100 mt . calculate speed
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Answer 1

Answer:

Explanation:

Given :-

Radius of circular track, r = 100 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 × 100

⇒ Circumference of circular track = 628.57 m

Now, Speed = Distance/Time

⇒ Speed = 628.57/120

⇒ Speed = 5.23 m/s

Hence, the speed is 5.23 m/s.