Question

A cyclist goes around a circular track once every two minutes if the radius of the circular path 210 metre then calculate the speed

Answer 1

Hi there !!

Radius = r = 210m

Time = t = 2 min = 120 sec

Distance traveled = circumference of the circle = 2πr = 2 × 22/7 × 210  = 1320 m

speed = distance / time
           = 1320/ 120
           = 11m/s

Answer 2

hey there !! here's the answer to ur query ....

the circumference of circular track = 2 pie r
=2×22×210÷7
=1320 metre

now speed = distance divided by time
=1320÷2
=660metre per minute
=660 m per 60 sec
=11 m per sec .....

hope that helped ....