Question

b) An athlete goes around a circular track once every 180 seconds. If the radius of the
circular track is 126 meters, calculate his speed ( given it =
22
7​

Answer 1

Answer:

Explanation:

10

Answer 2

Explanation:

Radius = 126 m

Circumference = 2×pie×r

= (2×22/7×126) m

= 792 m

So, the distance covered in one round = 792 m

Time taken to complete one round = 180 sec

So speed = d/t

= (792 m/180 s)

= (792/180) m/s

= 4.4 m/s