Question

A cyclist moving on a circular track of radius 100m completes one revolution in 4 minutes what is avrage speed

Answer 1

Given radius of the track = 100 m

Circumference of the track = 2πr where r is the radius

= 2 * 3.14 * 100 = 628 m

Now he takes 4 minutes to complete one revolution.

Time = 4 mins = 4 x 60 = 240 seconds

Average speed = Distance/Time

= 628/240 = 2.617 m/s is the average speed.