Question

A cyclist goes around a circular track once every 2 minutes. If the radius of the circular

track is 105 meters, calculate his speed.

Answer 1

Answer :

Radius of the circle = 105 m
Circumference of the circle = 2πr
= 2× π × 105
= 210 × π
= 30 × 22
= 660 m

So, cyclist travel 660 m in 2 minutes or , 660 m in 120 sec .

So, speed of cyclist = 660 / 120
= 5.5 m / sec

Hope you got your answer.

Best of luck for your future.